renamed plugin prolog.connector.ui to pdt.connector
renaming the projects
renamed contextview to graphicalviews
Renamed packages in graphical views project.
renamed packages in pdt editor
renamed packages in pdt.connector
Reorganized packages and plugins (move plugin related stuff from prolog.connector to pdt.connector, created packages for registry and subscriptions, added startup strategy for Prolog interface, ...)
Removed/replaced OptionProviderListener (was only used for decorators).
Renamed packages in prolog.connector.
Renamed Plugin activator classes.
Removed ResourceFileLocator (if it was used at all it was used wrong).
Reorganized utility classes.
Updated PrologInterface
- added default session flag
- added flags to queryOnce/queryAll
- moved queryOnce/queryAll to AbstractPrologInterface
- removed consulted file methods (now done via attributes)
- removed deprecated methods
added consult method to the Prolog process
- use prologFileNameQuoted where possible
- clean up UIUtils
Renamed PrologInterface to PrologProcess.

Still renamings to do.
Renamed some other classes with PrologInterface in their names.
Renamed remaining classes containing "PrologInterface" in their names.
Final renamings (pif -> process).
reorgani(s|z)ed package structure