[evol/fix] added support for read_only relations, improved result message, and fixed a regression where normal attributes could not be modified because of a regex mistake in the parsing code
[evol] finished modification of relations
[evol] code cleanup, and allowed pluralized version of object name in 'list' command
[evol] added private config load in home, and global hidden attributes (until something really proper is done for config)
[evol] files/code reorganization, and added a proper installer