Extend DatePickerDialog and override setTitle() method.
Hide CalendarView in tablets
Adding a min date not to go below creation date
Update travis to build-tools-19.0.3

Updates travis to support pull request #334
added automaticaly generated ant files
Set min date to one day after Created Date. Works on Honeycomb and above
Put Preferences in subscreen
Merge pull request #337 from siacs/master

added generated ant files
Merge pull request #335 from honnel/master

updated build.gradle-Files to current Versions of build-tools and SDK.
Merge pull request #336 from Emantor/travis_new_build_tools

Update travis to build-tools-19.0.3
Merge pull request #339 from uberspot/master

Put Preferences in subscreen
Add documentation
Removed log statements as per Dominik's suggestions
Use string from strings.xml
Merge pull request #328 from bhargavgolla/patch-1

Issue #234 : Adding a min date not to go below creation date
Merge branch 'master' of https://github.com/openpgp-keychain/openpgp-keychain into datefix
Merge pull request #324 from mb-14/datefix

Expiry selection UI fix