Adding ability to call Closing pull request

Invalid branch: not a pull request or Closing pull request

Invalid branch: not a pull request without having to checkout the branch first
Fixing issue where occasionally the 'View total diff' message isn't shown because the updated_parent_commit var is not defined.
Handling cases where /tmp directory doesn't exist
Pull request no longer contains user's name
Switch to using the Liferay organization rather than the repo forks list, as the forks list is incomplete
Improved fallback logic when email address is missing
Handle a path with spaces in it
Ignore spaces in file names for git pr stats
LPS-1234 - Updating exec bit
Merge branch 'master' into pull-request-5
Source formatting
Handle pagination when updating users from forks
Making it so that the comment always has a link to the submitted pull request (if this branch was submitted to a reviewer)
_work_dir being set to None causes an error in os.path.exists
Fixing update_users to authenticate request
Source formatting

Clean up line endings and empty lines with tabs
Source formatting

Clean up email markdown formatting.
May not be a unicode string, so use isdigit instead of isnumeric
Fix for issue in github API where a pull request is successfully submitted, but it throws a 500 error
Fix open_URL so it works in more setups