a2j_control breakage

[nedko]

Commit a2138aa changed the a2j_control command-line interface in backward incompatible way.

As the commit breaks existing scripts, I've reverted the breaking change in LADI/a2jmidid codebase: LADI/a2jmidid@3f39efb
python 2to3 was trivially applied without causing any breakage: LADI/a2jmidid@955db9d

Please consider fixing this breaking change as part of jackaudio/a2jmidid code-base.

See also #2 #9 #13