Fixed some compile time errors by including the previous aspm preferences

...java/de/kuschku/quasseldroid_ng/ui/chat/MainActivity.java

...ain/java/de/kuschku/quasseldroid_ng/ui/chat/Settings.java

...kuschku/quasseldroid_ng/util/accounts/AccountManager.java

...ldroid_ng/util/preferences/AbstractPreferenceElement.java

...u/quasseldroid_ng/util/preferences/BooleanPreference.java

...hku/quasseldroid_ng/util/preferences/FloatPreference.java

...schku/quasseldroid_ng/util/preferences/IntPreference.java

...chku/quasseldroid_ng/util/preferences/LongPreference.java

...ku/quasseldroid_ng/util/preferences/OnChangeListener.java

...u/quasseldroid_ng/util/preferences/PreferenceElement.java

...ku/quasseldroid_ng/util/preferences/StringPreference.java