fix a segfault when otr-coloring /me messages
Update json-parser code to git rev 11a80f389769d1f66ca7fbe64ad89c82d3ba4ba9.
Few BitlBee-specific diffs now. Annoyingly need to link to libm now for the
use of the function pow() since the lib now does its own number parsing...
fix 'otr connect' command
Merging two OTR-related bugfixes from pesco.