amplet2-0.10.3

Changes:

• amplet2: Allow setting default parameters for servers started by tests.
• amplet2: Allow including other files in the client configuration file.
• sip: Start remote server before initialising pjsip locally.

Bugfixes:

• sip: Fix copy and paste error in mutex name.
• sip: Cleanup and return more often rather than exiting with error.