Plugins list with TOML, Error checking is asynchronous
This new release include the following changes:
- The list of plugins uses the TOML syntax thanks to dein
- No more Vimmic's specific functions in the config
- Replace Syntastic with ALE for asynchronous error checking
- Overall performances improvement
- Vimmic base code now respect Google's standards
NOTE: For python, both ALE and PyFlake are enabled by default.