* Implement the new config framework.
    This means that project files are now INI style
    and split between a global FOO.kdev4 file that is
    safe to share, and a local .kdev4/FOO.kdev4 file
    that stores non-shareable settings like paths and
    environment variables.
* Change CMake settings to use new config framework
* Replace src/projectmanager.* classes with a 
  projectcontroller.* class.  Add a languagecontroller.*
  class that will allow more than one language part to be
  loaded at one time.
* Add a kdevelop.kdev4 global INI project file that should
  be safe to share and commit to svn.  Remove the old
  kdevelop4.kdevelop file.
* For now, project loading only takes place via the command
  line OR if you have Last Project=/path/to/kdevelop.kdev4 file
  in your local kdeveloprc.  I'm going to work on the action
  classes necessary to open projects soon ;)
* Introduce a kdevenv.* class in lib/interfaces where all 
  plugins that need access to the environment variables will get
  them.  This means we'll no longer have separate plugins running
  with different variables and the user can expect to set/get env
  variables in one central KCM.  You can get the environment from
  KDevApi... although it is not complete yet.
* I'll be creating a tool to convert between kdevelop3 project files
  to kdev4 project files sooner or later.