* remove 'transate' property and ng-scopes
* use bigs (surprised flow did not catch this)
* fix dropdown not expanding -- switch to simpledropdown
* Don't use generics for no real reason
* Create Ether, Wei, and GWei types, and annotate.
Also contains refactors and UX improvements
1. clear previously generated rawTX/signedTx when changes to transaction inputs are made.
2. reset generated rawTx/signedTx while new generateTx is loading
* add toString helper method and use in place of .amount.toString()
* support optional base in toString helper method and use
* incorporate PR suggestions (destructure, resolve via callback)
38dd22953a