v2.04

Add mutex for delayed work list

The delayed_work list can be accessed by multiple threads which
can result in memory corruption.

Prevent this by protecting the access with a mutex.

v2.03

Take instance lock before destroying delayed work object

When the delayed work object is freed the call reference is removed from
the registry index - this work requires the state to be locked.

v2.02

Fix memory issue when dpulicate entry in map file

The insertion of a map entry was mishandled when there is a
duplicate entry. The library routine actually takes care of
the situation by itself.

v2.01

Only load apteryx API for XML files

v2.00

Multithreaded Alfred

With new lua instance locking functionality in Apteryx we can now load
lua files and lua snippets from XML files into seperate lua stacks.

This requires changes to the lua that is loaded - currently each lua
file in the script directory will be loaded into its own lua state, and
the XML files will all be loaded into a single state.

v1.99

apteryx-saver: Check for apteryx_query() failure whilst writing config

Check for apteryx_query() failure whilst writing config. Apteryx_query()
can return NULL if a refresher path included in the query doesn't
respond to apteryxd.

v1.98

Add after_quiet() function-based unit tests

Add unit tests for after_quiet() called with a function and some number
of arguments.

v1.97

Fix incorrect check for config

v1.96

Merge pull request #25 from alliedtelesis/root_ns_mappings

Support root node namespace mappings

v1.95

Fix actual use of schemas