[gtksourceview] (5 commits) Non-fast-forward update to branch wip/search-start-signal

[Sébastien Wilmet <swilmet src gnome org>]

The branch 'wip/search-start-signal' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  9942aec... region: add add_region() and intersect_region()
  bf75f03... Add private search-start signal
  466d4eb... buffer: split update_syntax/search_highlight()
  13d0334... SearchContext: fix object leak on regex search
  bbbb5dc... SearchContext: fix update_highlight() when called for sever

Commits added to the branch:

  04e712b... region: add functions to add/subtract/intersect two GtkSour
  1657f79... Add private search-start signal
  93bb09e... buffer: split update_syntax/search_highlight()
  48f2b42... SearchContext: fix object leak on regex search
  ef928fa... SearchContext: fix update_highlight() when called for sever