added hints on main screen
added choice to choos market from which to download ZXing
creating list of TextViews
implemented colored lists: updated onClickListener
changed the colors
improved debug Log output,
added TODO
Merge branch 'colored-list' into devel
working on compatibility to Android 2.2
removed onOptionsItemSelected overridden methods in several classes.
added one missing db.close and several cursor.close statements
Merge branch 'devel' into froyo-backport
Merge branch 'devel' into releasecandidate2

Conflicts:
	src/com/srsoftware/allergyscan/AllergenSelectionActivity.java
	src/com/srsoftware/allergyscan/AllergyScanDatabase.java
	src/com/srsoftware/allergyscan/LearningActivity.java
	src/com/srsoftware/allergyscan/MainActivity.java
	src/com/srsoftware/allergyscan/RemoteDatabase.java