Providing ids to theme PyDev dialogs.
Remove some unused imports/variables.

A batch of unused imports are removed. Unused variables are either removed, or commented out
if they are referenced in pre-existing comments. Files not modified include tests or ast files.
Reference static members with qualified type name.
Merge pull request #22 from cabernal/fix-static-refs

Reference static members with qualified type name.
Merge pull request #21 from AndrewFerr/unused_things

Remove some unused imports/variables.
Improved the way that the interpreter location is shown on the pydev package explorer.
Removed println.