Remove useless '+' from GetOptions()
Rename --pretend to --no-act
Rename variables fed by GetOptions()
Fix bug introduced by 552add678ff8d05e0d5bb339bbe860f342c2d14c

Bug:
Renamed --pretend to --no-act without renaming $pretend to $opt_no_act

Removed reference to $pretend as it was an old & unused safety measure,
anyway.
Fix documentation for 552add678ff8d05e0d5bb339bbe860f342c2d14c
Formatting/indentation
Add .gitignore
Default to strict JSON for storage
Don't store certain metadata types unless told to
Improve docs on metadata type storage
More comment cleanups
More comment improvements
Release 0.20130627
Merge branch 'master' into debian
Packaging work other than dependency tracking