Description of problem:
After running a project-wide search, when using the replace feature, the search is treated as a regular expression, so '.' will match any character and '?' at the beginning of the search string causes an error in replacement.

Version-Release number of selected component (if applicable):
1.6-alpha-1

How reproducible:
Always

Steps to Reproduce:
1.Sign in to a project and enter "?testing..." in any two translation fields
2.Navigate to project wide search and replace
3.Search for "..."
4.Enter "!" in the replacement field
5.Click "replace" next to one of the "?testing..." fields
6.Search for "?test", enter "test" in replacement field
7.Click "replace" next to the other "?testing..." field
  
Actual results:
5. string changed to "!!!.."
7. message "Replace text failed" shown and no replacement made

Expected results:
5. string changed to "?testing!"
7. string changed to "testing..."

Additional info: