vim:deoplete: assorted configuration options
vim:deoplete: assorted configuration options

- Candidate_marks are disabled for now. python completion is not
  working
- Change around source with different marks
- Re-enable setting to avoid autocompletion from comments and strings
- Remove auto completion delay
- Align few configuration options to latest deoplete build

Signed-off-by: Ratheesh S <f847af0ee3590f4912d169b886f309989d9e4c2e@gmail.com>

ratheesh/dot-files,ratheesh/dot-files