Description of problem:

It is expected to get case sensitive search result when "Case sensitive" is checked. However, zanata still return case insensitive results.

Version-Release number of selected component (if applicable):
Zanata version 2.1-SNAPSHOT (20121217-1536)

How reproducible:
Always

Steps to Reproduce:
1. Visit any document
2. On entry 1, type "Test"
3. On entry 2, type "test"
4. Click at project wide search and replace icon and enter the search mode
5. Search scope set to either "both" or "Target"
6. Check "Case sensitive"
7. Search "test"
  
Actual results:
Both "Test" and "test" are returned

Expected results:
Only "test" is returned

Additional info: