add autocomplets for directives and variables

merged from atom-angularjs package
add snippets for html and javascript

merged from atom-angularjs package
merge snippets

remove some of old snipptes.
because when prefixes are duplicated, only last one works
and prefixes started with special characters, such like
`|`, `$`, doesn't work in Atom.
enhanced README
Merge pull request #3 from outsideris/merge-atom-angularjs

Merge atom-angularjs
fix markdown errata
Merge pull request #6 from outsideris/fix-readme

fix markdown errata
feat: Ctrl with $inject/Ctrl Proto Methods/Ngdocs

Added support for controllers written in the $inject format.
Added support for controller prototype methods.
Added support for ngdocs comment
chore: Add new features to README.md

Add new snippets to README.md
Merge pull request #8 from btesser/master

feat: Ctrl with $inject/Ctrl Proto Methods/Ngdocs