Overriding or Removing Resource Ignore Patterns
  After you have added global file-matching patterns to the list of files to be ignored for version management, you
  may wish to occasionally override the "ignore".
  
    - Open the 
     Team > Ignored
    Resources preference page. Team > Ignored
    Resources preference page.
- To temporarily override one or more of the file-matching patterns, clear their checkboxes.
- Click OK.
Files that match the patterns you have deselected will be considered for version control.
  To permanently remove a pattern, select it and click Remove.
  Version control life cycle: adding and ignoring
  resources
  Creating a global ignore pattern
  Synchronizing with the repository