Added markers with animals' names to map. Added new option to config.xml (markers visibility).
Moved code from SighseeingActivity#onCreate to separate methods.
Added methods Settings#getValueAsDouble and Settings#getValueAsBoolean. Removed DEFAULT_ANIMALS_VISIBLE field from SightseeingActivity.
Merge pull request #42 from illa/maps

MYGUIDE-133
Merge remote-tracking branch 'upstream/android' into android

Conflicts:
	res/raw/config.xml
	src/com/blstream/myguide/SightseeingActivity.java
	src/com/blstream/myguide/settings/Settings.java