Fix invalid flycheck package version

For some reason this is not supported. See this ticket:

Add recipe for the omnisharp package by sp3ctum · Pull Request #954 · milkypostman/melpa
https://github.com/milkypostman/melpa/pull/954#issuecomment-22719686
Define as interactive function
add autoload cookies for lazy loading
Merge pull request #15 from syohex/autoload-cookies

Add autoload cookies for lazy loading

Also fix omnisharp-auto-complete not being interactive
Add MELPA installation instructions to README
Project maturity: setup is now easy

Or easy-ish.
Merge branch 'master' into develop
Merge remote-tracking branch 'refs/remotes/github/master'
Merge branch 'master' into develop
Add screenshots section to README
Merge branch 'master' into develop
omnisharp-code-format-worker: fix confusing argument name

There is a function by the same name
Remove omnisharp-syntax-check

I noticed it only prints the errors it the minibuffer. Oops.
Make omnisharp-syntax-check-worker return errors, not print them.
Add missing paren
Document why syntax checker is not an elisp function
Enable clicking on mono compilation errors in *compilation* buffer

Windows version is different, and still TODO.