* EIP-1895: Better constants and address range description
Address @Arachnid's comments about presenting constants and how an address value is limited.
* EIP-1985: Fix a typo
* EIP-1985: Use "instructions" instead of "opcodes"
* sane
* some clarifications
* remove cruft
* some clarifications
* propose spec changes
* limit the scope to EVM only
* more rationale
* group affected opcodes by ranges
* Rename to EIP-1985
* Add discussion URL to EIP-1985
* Include a reference to EIP106
* Add more rationale
* fix typo
* Remove unfounded worry
* mention timestamp being 64-bit value in Aleth
* resolved an TODO item as Rationale entry