Use Roundcube user preferences for date format.
Set default mode to local.
Start fixing translations.
Remove colons ':' from label names, limits usefulness. Change de_DE file to use correct linebrakes.
Minor UI fix
Add ability to read/write the date from the stored sieve file.
 - use json encoded format for persistance
Fix a few lines with inconsistent space/tab usage

This should just get it working. More stuctual changes to come.
Add Managesieve interface, update config.
Let the sievec binary location be configured
Model update on save or form resets to defaults
Update UI texts for i18n. Complete en_US localization
Move error and debug output in to functions
Make debug output a config option
Make 'enable' do something
Add config option for script activation via Managesieve on enable
Merged with gms-chris