Add some docs/readmes (#329)

Updates and adds some package docs.

It also provides autogenerated README's using https://github.com/jimmyfrasche/autoreadme tool. To use it, make sure it's installed on your system, and every time you update documentation, run go generate to update the README.md file.

geth/jail/README.md

@@ -1,5 +1,5 @@
-#jail [![GoDoc](https://godoc.org/github.com/status-im/status-go/geth/jail?status.png)](https://godoc.org/github.com/status-im/status-go/geth/jail)
+# jail [![GoDoc](https://godoc.org/github.com/status-im/status-go/geth/jail?status.png)](https://godoc.org/github.com/status-im/status-go/geth/jail)
-go:generate autoreadme -f Package jail implements "jailed" enviroment for executing arbitrary JavaScript code using Otto JS interpreter (https://github.com/robertkrimen/otto).
+jail - jailed enviroment for executing JS code.
 
 Download:
 ```shell
@@ -7,7 +7,7 @@ go get github.com/status-im/status-go/geth/jail
 ```
 
 * * *
-go:generate autoreadme -f
+jail - jailed enviroment for executing JS code.
 
 Package jail implements "jailed" enviroment for executing arbitrary
 JavaScript code using Otto JS interpreter (https://github.com/robertkrimen/otto).

geth/jail/doc.go

@@ -1,5 +1,6 @@
-//go:generate autoreadme -f
 /*
+jail - jailed enviroment for executing JS code.
+
 Package jail implements "jailed" enviroment for executing arbitrary
 JavaScript code using Otto JS interpreter (https://github.com/robertkrimen/otto).
 
@@ -83,3 +84,5 @@ it's user responsibility to register a corresponding callback function before:
 
 */
 package jail
+
+//go:generate autoreadme -f

geth/log/README.md

@@ -0,0 +1,52 @@
+# log [![GoDoc](https://godoc.org/github.com/status-im/status-go/geth/log?status.png)](https://godoc.org/github.com/status-im/status-go/geth/log)
+Package log implements logger for status-go.
+
+Download:
+```shell
+go get github.com/status-im/status-go/geth/log
+```
+
+* * *
+Package log implements logger for status-go.
+
+This logger handles two loggers - it's own and ethereum-go logger.
+Both are used as "singletons" - using global shared variables.
+
+## Usage
+First, import package into your code:
+
+```
+import "github.com/status-im/status-go/geth/log
+```
+
+Then simply use `Info/Error/Debug/etc` functions to log at desired level:
+
+```
+log.Info("Info message")
+log.Debug("Debug message")
+log.Error("Error message")
+```
+
+Slightly more complicated logging:
+
+```
+log.Warn("abnormal conn rate", "rate", curRate, "low", lowRate, "high", highRate)
+```
+
+Note, in this case parameters should be in in pairs (key, value).
+
+This logger is based upon log15-logger, so see its documentation for advanced usage: https://github.com/inconshreveable/log15
+
+## Initialization
+By default logger is set to log to stdout with Error level via `init()` function.
+You may change both level and file output by `log.SetLevel()` and `log.SetLogFile()` functions:
+
+```
+log.SetLevel("DEBUG")
+log.SetLogFile("/path/to/geth.log")
+```
+
+
+
+* * *
+Automatically generated by [autoreadme](https://github.com/jimmyfrasche/autoreadme) on 2017.09.15

geth/log/log.go

@@ -1,5 +1,42 @@
+/*Package log implements logger for status-go.
+
+This logger handles two loggers - it's own and ethereum-go logger.
+Both are used as "singletons" - using global shared variables.
+
+Usage
+
+First, import package into your code:
+
+    import "github.com/status-im/status-go/geth/log
+
+Then simply use `Info/Error/Debug/etc` functions to log at desired level:
+
+    log.Info("Info message")
+    log.Debug("Debug message")
+    log.Error("Error message")
+
+Slightly more complicated logging:
+
+	log.Warn("abnormal conn rate", "rate", curRate, "low", lowRate, "high", highRate)
+
+Note, in this case parameters should be in in pairs (key, value).
+
+This logger is based upon log15-logger, so see its documentation for advanced usage: https://github.com/inconshreveable/log15
+
+
+Initialization
+
+By default logger is set to log to stdout with Error level via `init()` function.
+You may change both level and file output by `log.SetLevel()` and `log.SetLogFile()` functions:
+
+	log.SetLevel("DEBUG")
+	log.SetLogFile("/path/to/geth.log")
+
+*/
 package log
 
+//go:generate autoreadme -f
+
 import (
 	"fmt"
 	"os"
@@ -11,19 +48,19 @@ import (
 // Logger is a wrapper around log.Logger.
 type Logger struct {
 	log.Logger
-	Level   log.Lvl
+	level   log.Lvl
-	Handler log.Handler
+	handler log.Handler
 }
 
 // logger is package scope instance of Logger
 var logger = Logger{
 	Logger:  log.New("geth", "StatusIM"),
-	Level:   log.LvlError,
+	level:   log.LvlError,
-	Handler: log.StreamHandler(os.Stdout, log.TerminalFormat(true)),
+	handler: log.StreamHandler(os.Stdout, log.TerminalFormat(true)),
 }
 
 func init() {
-	setHandler(logger.Level, logger.Handler)
+	setHandler(logger.level, logger.handler)
 }
 
 // SetLevel inits status and ethereum-go logging packages,
@@ -34,8 +71,8 @@ func init() {
 func SetLevel(level string) {
 	lvl := levelFromString(level)
 
-	logger.Level = lvl
+	logger.level = lvl
-	setHandler(lvl, logger.Handler)
+	setHandler(lvl, logger.handler)
 }
 
 // SetLogFile configures logger to write output into file.
@@ -46,8 +83,8 @@ func SetLogFile(filename string) error {
 		return err
 	}
 
-	logger.Handler = handler
+	logger.handler = handler
-	setHandler(logger.Level, handler)
+	setHandler(logger.level, handler)
 	return nil
 }
 

geth/rpc/README.md

@@ -0,0 +1,30 @@
+# rpc [![GoDoc](https://godoc.org/github.com/status-im/status-go/geth/rpc?status.png)](https://godoc.org/github.com/status-im/status-go/geth/rpc)
+rpc - JSON-RPC client with custom routing.
+
+Download:
+```shell
+go get github.com/status-im/status-go/geth/rpc
+```
+
+* * *
+rpc - JSON-RPC client with custom routing.
+
+Package rpc implements status-go JSON-RPC client and handles
+requests to different endpoints: upstream or local node.
+
+Every JSON-RPC request coming from either JS code or any other part
+of status-go should use this package to be handled and routed properly.
+
+Routing rules are following:
+
+- if Upstream is disabled, everything is routed to local ethereum-go node
+- otherwise, some requests (from the list, see below) are routed to upstream, others - locally.
+
+List of methods to be routed is currently available here: https://docs.google.com/spreadsheets/d/1N1nuzVN5tXoDmzkBLeC9_mwIlVH8DGF7YD2XwxA8BAE/edit#gid=0
+
+Note, upon creation of a new client, it ok to be offline - client will keep trying to reconnect in background.
+
+
+
+* * *
+Automatically generated by [autoreadme](https://github.com/jimmyfrasche/autoreadme) on 2017.09.15

geth/rpc/doc.go

@@ -0,0 +1,22 @@
+/*
+rpc - JSON-RPC client with custom routing.
+
+Package rpc implements status-go JSON-RPC client and handles
+requests to different endpoints: upstream or local node.
+
+Every JSON-RPC request coming from either JS code or any other part
+of status-go should use this package to be handled and routed properly.
+
+Routing rules are following:
+
+- if Upstream is disabled, everything is routed to local ethereum-go node
+- otherwise, some requests (from the list, see below) are routed to upstream, others - locally.
+
+List of methods to be routed is currently available here: https://docs.google.com/spreadsheets/d/1N1nuzVN5tXoDmzkBLeC9_mwIlVH8DGF7YD2XwxA8BAE/edit#gid=0
+
+Note, upon creation of a new client, it ok to be offline - client will keep trying to reconnect in background.
+
+*/
+package rpc
+
+//go:generate autoreadme -f