Added neosnippets along with neocomplcache.

Also I should probably talk to garside about more use cases
for this. Also I can keep discovering use cases as I code and note
them in the logs.
TODO(Sid): Since I have escape mapped to tab and ctrl mapped to capslock
I have <C-k> to expand the snippets and <leader>t to jump to place
holders. Is this the optimal/fastest key combination?

Need to get used to using a few snippets before I say yeah!