Revert "Rename ftplugin for .otl"

This reverts commit e3c3ac5cbb6ad739f57470a7f96b44e6f7e46d03.
Revert "Comment out Todo hi link for votl checkboxes"

This reverts commit 31bf1eed0413b449bc16f143f3226867820e7a1f.
Revert "Replace vimoutliner with votl"

This reverts commit 075d309c88af532215b5b2ab7315438c975842fd.
Replace votl with vimoutliner
Rename .otl ftplugin
Update python syntax highlighting
Add nerdcommenter plugin
Remove Voom mapping
Change vo_base text color to be brighter
Add VoomToggle mappings
Decrease vo_base tabstop