Prepared for dev
Update CHANGELOG.md
Added calculator landscape layout
Merge pull request #202 from i906/calculator-land

Added calculator landscape layout
Update CHANGELOG.md
Can edit main currency
Moving to activities WIP
Moved navigation to activity based navigation
Some more work on Activity based navigation
Toolbar sucks
Fixed drawer navgation
Fixed navigation
Layout fixes
Better overview landscape support
Refactored overview and it's views
Updated FAB
Fixed toolbar text inset
RecyclerView WIP
Updated overview portrait layout. Updated gradle. Updated Currencies to use Activity
Updated overview landscape