v1.2

This version introduces these new features:

• Non-ASCII steno strokes are now supported (#2).
• \cxsystem now uses this library's version string when converting from JSON, rather than leaving it empty.

It also includes the following bug fixes:

• Dictionaries with a non-text entry at the very end now parse correctly (#1).
• Empty dictionaries and dictionaries with only one entry now parse correctly (#1).
• The longest key calculation is no longer off by one; this prevented Plover from looking up translations in dictionaries where entries have only one stroke.