texstudio: update to 2.12.14

TeXstudio 2.12.14
----------------
- fix bug that not all available GUI languages are shown
- tweak fuzzy completer
- fix template presentation

TeXstudio 2.12.12
----------------
- improve macro handling, provide gui that directly downloads macros from
  github.com/texstudio-org/texstudio-macro
- add fuzzy completion mode
- add cwls
- fix rare bug that the character appear reverse order
- bug fixes

TeXstudio 2.12.10
----------------
- improvement recognized latex commands and packages for completion/syntax
  checking
- complete package names when they contain minus
- do not clean .git subfolder with auxiliary files
- pdf viewer: improved previous page jumping, fix embedded movie boxes (when
  compiled with phonon)
- option to use qt file dialog rather than system file dialog
- fix structure view with Qt >5.10
- bug fixes

TeXstudio 2.12.8
----------------
- improved tokenizer for syntax checking and completion
- pressing Ctrl+F while the editor search has focus opens the extended
  search, i.e., you'll get extended search by pressing Ctrl+F twice
- automatically insert math delimiters ($) when inserting a math command
  outside of a math env (can be turned off, default on)
- change copy behavior of multiple cursors from selection order to line
  order
- file list is now a transparent popup window: closes when clicked outside
- combine file conflict and show diff dialog
- fix file watcher not recognizing multiple changes to a file in quick
  succession
- improved detection of package names when opening texdoc
- new symbol panel layout
- some touch scrolling on certain panels
- updated synctex and poppler libraries for pdf viewer
- fix undo when a snippet is inserted and a selection is inserted as well
- fix some parts of the editor background may not be drawn in the correct
  color
- build for OSX High Sierra
- various other fixes

(markd)