Fix issues with injected web3 and advanced cljs compilation

* use stub js for web3 externs
* upgrade clojurescript

Fixes: #21

externs/web3-externs.js

@@ -0,0 +1,12 @@
+
+/*
+externs for web3 injected into js context. needed for things to work with advanced cljs compilation
+
+TODO: probably not a good idea to maintain this manually in the long run*/
+
+var web3 = {
+    eth: {
+        accounts: [],
+        sendTransaction: function() {}
+    }
+};

project.clj

@@ -9,7 +9,7 @@
                  [secretary "1.2.3"]
                  [reagent-utils "0.2.0"]
                  [reagent "0.6.0"]
-                 [org.clojure/clojurescript "1.9.456" :scope "provided"]
+                 [org.clojure/clojurescript "1.9.473"]
                  [org.clojure/clojure "1.8.0"]
                  [selmer "1.10.5"]
                  [markdown-clj "0.9.93"]
@@ -84,12 +84,13 @@
                      {:source-paths ["src/cljc" "src/cljs" "env/prod/cljs"]
                       :compiler
                       {:output-to     "target/cljsbuild/public/js/app.js"
-                       :externs       ["react/externs/react.js"]
+                       :externs       ["externs/web3-externs.js"]
                        :optimizations :advanced
                        :pretty-print  false
                        :closure-defines {goog.DEBUG false}
                        :closure-warnings
-                       {:externs-validation :off :non-standard-jsdoc :off}}}}}
+                       {:externs-validation :off
+                        :non-standard-jsdoc :off}}}}}
 
 
                    :aot            :all

src/cljs/commiteth/update_address.cljs

@@ -8,13 +8,13 @@
 (defn update-address-page []
   (let [user (rf/subscribe [:user])
         updating-address (rf/subscribe [:get-in [:updating-address]])
-        web3 (.-web3 js/window)
+        address (r/atom @(rf/subscribe [:get-in [:user :address]]))]
+    (fn []
+      (let [web3 (.-web3 js/window)
             web3-accounts (into [] (when-not (nil? web3) (-> web3
                                                          .-eth
                                                          .-accounts
-                                                         js->clj)))
-        address (r/atom @(rf/subscribe [:get-in [:user :address]]))]
-    (fn []
+                                                         js->clj)))]
         (println "web3-accounts" web3-accounts)
         [:div.ui.container.grid
          [:div.ui.form.sixteen.wide.column
@@ -39,4 +39,4 @@
                                                     @address])}
                                     (when @updating-address
                                       {:class "busy loading"}))
-         "Update"]]])))
+           "Update"]]]))))