delete wallet changes
tweaked icons
prep for 0.5.9rc1
fixed bug on opening a wallet that is already open
fixed ticker timer bug.
update help button drill down in password panels
bump to 0.5.9
create controllers for testing class
add BaseController
make use of quit event
make use of controller interface where possible
core controller
refactor bitcoin controller
add BaseModel
refactor view into BaseModel
add exchange controller, make use of model interface
CoreModel class
refactor model data
exchange model
refactor constants
bitcoin model