Fix MainActivity code
Move to sdk 21 and support library 21
Change view of fragments related with wallets
Pixel perfect WalletDetailsFragment

Conflicts:
	WalletPlus/src/main/java/info/korzeniowski/walletplus/ui/wallet/list/WalletListFragment.java
	WalletPlus/src/main/res/layout/wallet_details.xml
Wallet Fragment State class and better pixels
Better state handling.
Change deprecated ActionBarDrawerToggle
Apply hotfix
First Robolectric UI test