* Add gruvbox truecolor colorscheme
* Fixed typo in gruvbox-tv, added operator type in colorschemes
* Added operator type to all default themes
* Changed operator to symbol
* changed operator to symbol due to name conflict
* Removed unused 'operator' field. Fixed gutter-error color
* Restored the statement group and removed operator
This may be a breaking change if you are using a plugin that
checks the filetype. All the default plugins are now updated,
just make the filetype you were checking for previously all
lowercase.
This commit adds the string group (constant.string) to valid strings
in all the syntax files that support colorschemes (see the readme in
the runtime/syntax directory).
Fixes#178
