Branch: master

* syntax/qmake.vim: Addes syntax highlight for Qt project files.
* filetype.vim: Added *.pro, *.pri and *.qrc extensions to recognize the
  types of files used by Qt.
* plugs.vim: Added DGExt, UiltiSnips and ApplyTemplate plugins as
  enbaled by default.
* atpl/qitemmodel_w.{h|cpp}: New templates added.
* atpl/snippets.c: Added <+vfh+> and <+vsh>+ macros to build the headers
  of functions and others documentation with version information.
  Version information will be asked or read from <{@VERSION@}> variable.
* after/ftplugin/c.vim: Changed keymappings for <F2> and <F3>.
* vimrc: Not using 'viminfo' any more.