Version 2.6 beta1
Clarify comments
stripped support: add has_secret column to keys table
stripped support: implement has_secret support, in ui and impot of secret keys

Closes #570
Fix help_start
Translations from transifex, fix some strings references
Update PGPSecretKey.java

fix
Fix whitespace
Fix more whitespace
Fix even more whitespace
Merge pull request #576 from Valodim/stripped-secretkeys

Support stripped secretkeys
Use git submodules for libs, fix compilation, remove library sourcecode
essential instead of integral
secret keys can only be deleted individually from multi selection
Rename provider types following http://developer.android.com/guide/topics/providers/content-provider-creating.html
Merge branch 'master' of github.com:open-keychain/open-keychain
Update comments in AndroidManifest
use project icons for certification status

Closes #573
add up navigation in ViewCertActivity

Fixes #567
load data only once in ImportKeysListLoader

Fixes #571