pyfeed and xe where still used only for date format handling, and there is already dateutil which is a dependency of Wokkel.
Furthermore pyfeed and xe are still not on pypi, causing troubles for installation with pip
- getRepositoryData has 2 new option: is_path to give absolute path instead of module name, and save_dir_path to save the repository data in a pickled dictionnary
- if "hg" executable doesn't work, a .hg_data dictionnary is checked if present in module root path
short form is now returned in string version for better readability. Even if a collision is possible, it's not a big deal as it is used mainly in about dialog to help identify a version in case of e.g. bug.
