Use @jasoncodes' <Leader>r mapping to refresh and save buffers
Remove extra whitespace plugin
Revert "Add CtrlPtjump Vim plugin and map to <C-]>"

This reverts commit 416b7d665bf77173f88e5ffdaeff7f2daf36d706.
Whitespace
Replace individual Vim language plugins with vim-polyglot
Improve neocomplcache Vim plugin settings and mappings