Log Message:
Remove gedit3-spell and make the spell check plugin an (enchant) option
Update gedit3 to 3.14.2

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gedit 3.14.2
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New Features and Fixes
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- External tools plugin: fix document saving
- Various other bug fixes

New and updated translations
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- ja (Hajime Taira)
- nb (Kjartan Maraas)
- vi (Tran Ngoc Quan)