added gear image for settings button
Merge pull request #17 from adasilva/icons

added gear image for settings button
Merge pull request #16 from adasilva/mywallet

Help Screen - issue #7
Merge pull request #19 from adasilva/mywallet

improve help window
Merge branches 'master' and 'mywallet' into mywallet
added help icon
resized the buttons
put help icon on help button