Introduce neocomplete
Add basic configuration for neocomplete:

* enable it,
* disable rebuild on load
* smartcasing
Add snippets and neosnippets
Remove ultisnips with neosnippets
Merge branch 'feature/neocomplete' into develop

* feature/neocomplete:
  Remove ultisnips with neosnippets
  Add snippets and neosnippets
  Add basic configuration for neocomplete:
  Introduce neocomplete
Make molokai the default colorscheme
Add custom snippets: eruby
Map space as leader
Leader-p opens ctrlp
Fix snippets and make sure custom snippets are managed outside bundle
Re-adding rubytest
Ignore Rail's generated docs in searches and ctrl-p and such
Remove Floobits
Add ruby snippet for nodoc
remove unused mappings
Adding vim-slim plugin: for Slim template language
Upgrade rubytest
Add rspec and model snippets
Remove obsolete config for neocomplete
Rubytest for better rspec settings