Support for Warnings in the code analysis. 
For example, add  "ghc-options: -Wall" to Cabal file to get several warnings like "Top-level binding with no type annotation"
Support for Warnings in the code analysis
Special highlighing of installed packages
Special highlighting of installed Cabal packages #4 
getInstalledPackagesList is operational, but not yet used
Merge pull request #11 from kosiakk/master

Support for Warnings in the code analysis