Fix problem of a job's destination path getting damaged on Windows.

"D:\folder\map" would become "D:folder\map", giving nasty side-effects.
Update text files for 0.7.19RC4
Update OSX signing.

Lion build can only be signed on Lion.
ML/Mav build must be signed on Mav.
Update OSX DMG image.

Make MountainLion/Mavericks/Yosemite the default choice.
Separate folders for SnowLeopard and Lion.
When a  comma is present in a file name, quotes are needed when passed to a user script.

The replacement list2cmdline() should handle commas.
Merge remote-tracking branch 'upstream/0.7.x' into 0.7.x