e17: refactor code duplication. - added _e_border_maximize used by e_border_maximze and eval for changed border   - added _e_border_client_inset_calc, same code was used in various places
e17: refactor code duplication.
- added _e_border_maximize used by e_border_maximze and eval for changed border  
- added _e_border_client_inset_calc, same code was used in various places


git-svn-id: 6ac5796aeae0cef97fb47bcc287d4ce899c6fa6e@62897 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33

jordemort/e17,jordemort/e17,jordemort/e17