add checkstyle plugin and config file
add new blank line rules to checkstyle settings
Merge branch 'develop' into issue/670-refresh-code-style
new script to check introduced style errors
Merge branch 'develop' into issue/670-refresh-code-style

Conflicts:
	build.gradle
	src/org/wordpress/android/util/StatsRestHelper.java
move WPComLoginActivity to ui.accounts subpackage
fake a holo dialog box using buttonBarStyle - does'nt work on api < 11
remove extra padding
better handling of invalid credentials response
add a password visibilty toggle
change help string for self hosted users
disable edit texts when signin in progress
Merge branch 'develop' into issue/670-refresh-code-style

Conflicts:
	build.gradle
test validation of WelcomeFragmentSignIn.java
dummy
checkstyle scripts
fix compare-with-develop-style script
enhanced compare-with-develop-style.sh script
import order
rename dimen to default_dialog_width since it's used in different places