holoirc: multiple updates

* rework server settings into 3 files - the activity and the 2 fragments
* makes code much cleaner
* also rework the save mechanism - closes #35 - the save/discard mechanism just did not work
* add animations for the listview as well and between the two fragments
* also refactor some code to increase readabiltiy
* fix the theme not working properly - the raw integer changes from version to version
* also change the lifecycle of the activity around to make more sense and reduce bugs