Log Message:
Updated to latest release, 4.2.0. Shared library name change. From NEWS:

Implemented a new function to read the ZID file if the ZID file backend
is SQlite3. This is not a security problem because the ZRTP cache was
always public and readable, refer to RFC6189.

SQL statement returns all ZID records, sorted by date, newest on top. The
function can then step thru the DB cursor and read the records.

The version also include sevral fixes, usually compiler warnings, some
small problems reported by 'cppcheck' analyser.

Because we have a new set of functions the API changed, thus it's necessary
to recompile applications that use the new library version.