Added classes designed for keeping informations about animals, ways, ways' junctions and theirs locations in the zoo.
Added parser for xml which contains informations about animals, ways, ways' junctions and theirs locations in the zoo.
Added some of documentation in zoolocations package.
Added class ParserHeleper in zooloactions package, res/raw/data.xml and some code in MainActivity
to complete some requirements from userstory (MYGUIDE-25) and to show that something is working.
Merge remote-tracking branch 'rafal/android' into tests

Conflicts:
	src/com/blstream/myguide/MainActivity.java
Added ZooLocationsDataParserTestCase class containing tests for class ZooLocationsDataParser
and some changes in ZooLocationsDataParser (made public messages for exceptions).
Added tests for ParserHelper. Few changes in ParserHelper.
Changes in ZooLocationsDataParser: now ways can appear after junctions, matching ways by id is done after a whole parsing.
Merge remote-tracking branch 'upstream/android'

Conflicts:
	src/com/blstream/myguide/MainActivity.java
Code reformatted. Added given, when and then comments in tests.
Wprowadziłam poprawki zgodnie z propozycjami Piotra.
Fixed most of things.
Added prefixes 'm' in classes, removed catching exceptions in tests, removed some problems with possible NullPointerException,
added WayNotFoundException class in ZooLocationsDataParser.
Moved tests to zoolocations package.
Fixed wrong name of directory. Removed log message from ParserHelper.
Changes for QA.

File .myguide/data2.xml (on external storage) is always opened when in debug mode. If any error occures, application opens res/raw/data.xml.
Merge remote-tracking branch 'upstream/android' into android

Conflicts:
	res/values/strings.xml
	src/com/blstream/myguide/MainActivity.java
resolve conflicts