Added MPL 2.0

I added the MPL 2.0 by copying the last entry in the master.xml file and changing the license attributes - please note that the reference to the google spreadsheet is the same as the duplicated entry, I don't know if this is an issue, I don't know how to generate a new master.xml, and I haven't attempted to update the google spreadsheet.

As part of making this change, I changed the AKA for the MPL 1.1 from "MPL" to "MPL 1.1"; the AKA for MPL 2.0 is "MPL 2.0".

I am not a lawyer, the values I added are my best understanding of MPL 2.0; it may be worthwhile having them review by counsel. I indicated that MPL 2.0 has strong backing (Mozilla), has a file-based weak copyleft, specifies "my jurisdiction" (it does, for litigation: litigation must occur in the defendant's jurisdiction; it is silent on other questions of jurisdiction); grants patent licenses with a retaliation clause; and is silent on questions of promotion, the privacy loophole, etc.