Make everything Internal

Close #33
Update documentation
Add Guard with RSpec and RuboCop

Guard understands `rspec`, `rubocop` and `specs` for both of them.
Merge pull request #36 from yous/patch-documentation

Progress on documentation
Rename View to Processor

https://github.com/khwon/loco/pull/22#issuecomment-50709810

Fix wrong return section of LocoMenu#process and LocoMenu#menu_helper.
Remove `TermApp::` prefix in documentation
Merge pull request #38 from yous/patch-processor

Rename View to Processor
Set default plugin scope to RuboCop for now

https://github.com/khwon/loco/pull/37#issuecomment-50957418
Merge pull request #37 from yous/patch-guard

Add Guard with RSpec and RuboCop