ide: removed background image

Conflicts:
	ide/locale/ide.pot
ide; made ToolBox and Properties Sheet invisible by default.
ide; incomplete plugin system. added gitto on save plugin directly in the ide.
extras; added stringTools.ec.
extras; CSVDataParser.ec use of stringTools.ec.
ecere:gui:controls:DataBox; use size instead of clientSize when auto sizing to child size.
ide, extras, FileSystemIterator; moved DestroyDir function to FileSystemIterator.ec for use by other projects. added owner member to FileSystemIterator for use in all the events.

Conflicts:
	extras/FileSystemIterator.ec
ecere; added FileSetDateStamps.
extras; added LineReader and ProgramOutputLineReader to FileSystemIterator.