Emacs fsharp-mode support for multiple projects
Emacs fsharp-mode support for multiple projects

* Should be seamless, project files autoloaded if found
* Output a message when a project is loaded
* Add a new integration test for this functionality

Fixes #235

kjnilsson/FSharp.AutoComplete,vasily-kirichenko/FsAutoComplete,rneatherway/FsAutoComplete,cloudRoutine/FsAutoComplete,cloudRoutine/FsAutoComplete