Added button_rounded style
converted decrypt_file_fragment to new style
Improved button style
centered buttons
removed commented-out button
Updated file_dialog to use the new buttons
Added new button style and converted account_settings and the select_secret_key_layout to use it
Converted AsymetricKeyFragment to new button style
Ported even more buttons to use new design (Key and User editor)
Added drawables for them
Converted all other buttons
Merge branch 'master' of https://github.com/open-keychain/open-keychain
Fixed, issue #702
Deprecated Android Bootstrap, thus fixing #597
(should have) fixed Travis builds
Fixed Bootstrap resource
Merge pull request #704 from da-kid/master

Fixed #702 and also #597