gitweb: Great subroutine renaming + task separation into subroutines + improvements

This series of patches is based on the 'next' branch, commit 10a6653c818f78c6032d45e1d4da544085e1f28b (v1.4.2-g10a6653)

It begins with:
* [PATCH 1/9] gitweb: Great subroutines renaming

Then there is series of patches which separate task into subroutine; 'refactor' in patch subject here means that we use new subroutine in more than one place, 'separate' here means that new subroutine is (for now) used only in one place
* [PATCH 2/9] gitweb: Separate ref parsing in git_get_refs_list into parse_ref
* [PATCH 3/9] gitweb: Refactor printing shortened title
in git_shortlog_body and git_tags_body
* [PATCH 4/9] gitweb: Separate main part of git_history into git_history_body
* [PATCH 5/9] gitweb: Separate finding project owner
into git_get_project_owner

Then there is couple of improvements
* [PATCH 6/9] gitweb: Change appereance of marker of refs pointing to given object
* [PATCH 7/9] gitweb: Skip comments in mime.types like file
* [PATCH 8/9] gitweb: True fix: Support for the standard mime.types map in gitweb

And finally yet another separation of task into subroutine, with small improvements (and perhaps to be reused)
* [PATCH 9/9] gitweb: Separate printing difftree in git_commit into git_difftree_body

Jakub Narebski
Poland