* Add from to eth_transact / xeth.Transact and add static pass in lieu
of integrating with native Mist window for user passphrase entry
* Make eth_accounts return AccountManager.Accounts()
* Add a Generate Key menu item in Mist
Various functions throughout the codebase used it to grab settings. This
has to stop because I want to use them without reading the config file.
These functions can now be used without reading the config first:
* ethdb.NewLDBDatabase
* ethrepl.NewJSRepl
* vm.New
* Miner has been rewritten
* Added new miner pane
* Added option for local txs
* Added option to read from MergeMining contract and list them for
merged mining
