Remove hardcoded colors for action bar spinner

Instead get a themed context from the action bar so the correct theme
is used for the spinner.
Merge pull request #76 from boxer/bugfix/actionbar-dropdown-theme

Remove hardcoded colors for action bar spinner
Prevent a crash when the user tries to search a forum before the forum object itself has been loaded
Add email validation
Use latest support v4 jar
Croatian translation added
Make it close the soft keyboard after tapping next
Bump to 1.0.1
Merge pull request #83 from gkukurin/master

Croatian translation added
Fix a potential crash