fixes #3: added readme note in case of old version of pip
escaped non-compliant subject fields, fixes some broken nzbs (not well-formed error)
fixed #4: functionality was actually already there, fileext was just different to expected
fixed #2: slightly better
fixes #5:  possible error when importing nzb with custom (and non-copied) category - reset it and categorise it ourselves
added warning to import script
added readme note about instability
fixes #2: added a missed change
revert stupid mistaken commit
fixed #8: read nzb.gz as text, utf-8
fixed #7: added a proper error message and halt script if duplicate keys are detected in lookup tables (tvdb/imdb/tvrage)
added get_nfo to api and added the correct error if the sent command is not accepted
counter-fixed return from some bad regex
changed start.py to support py3.2
closes #2: added timestamp to basic logger config