Support Network setCurrentServer messages.
Merge branch 'networksetcurrentserver' of https://github.com/mamarley/QuasselDroid into mamarley-networksetcurrentserver

Conflicts:
	QuasselDroid/src/main/java/com/iskrembilen/quasseldroid/io/CoreConnection.java
	QuasselDroid/src/main/java/com/iskrembilen/quasseldroid/service/CoreConnService.java
	QuasselDroid/src/main/res/values/ids.xml