TIMOB-8821: BlackBerry: Implement UI.Label ver5
TIMOB-8821: BlackBerry: Implement UI.Label ver5

Reviewers: JP, HarutM

ChangeLog:
- Added textAlign parsing code if provided as string

Test Cases:
- Build tibb.
- Build tibbtest.
- In the java script, instance label object with font, textAlign, color properties.
- Make sure existing mentioned properties works.

- Run docgen.py script
- Make sure documentation includes appropriates changes for blackberry platform

appcelerator/titanium_mobile_blackberry,appcelerator/titanium_mobile_blackberry,appcelerator/titanium_mobile_blackberry,appcelerator/titanium_mobile_blackberry,appcelerator/titanium_mobile_blackberry,appcelerator/titanium_mobile_blackberry