Merge Request #25 - 2017-04-27

Most changes for this version are results of our on-going effort to improve the stability of our concurrency and networking platform.

Improvements

libqi:

• Tests improved: additions and fixes;
• Documentation improved;
• Compilation using VS2015 should work (if you have the appropriate toolchain);
• Rewrote socket implementation;

qi-tools:

• Improved error reporting for qilaunch;
• Improved path usage in qilang;

Deprecated

libqi:

• qi::PromiseNoop (#34827)

Fixes

libqi:

• Fix most concurrency issues related from signals, object persistence (more to come);
• Fix some concurrency issues related to gateway and messaging systems (more to come);
• Fix message routing issue resulting in potential blocking remote calls (#35436);
• Fix code compiling when registering several signals with the same name in an object interface;
• Fix waitpid() not always returning the documented values;
• Fix search paths of SDKLayout: search for path.conf instead of relying on bin folder (#33042, #32142);
• Fix some memory leaks (#33341);
• Fix Future::cancel() request not being received by services (#37774)
• Fix a race on socket disconnection in TransportSocketCache
• Fix a system blocking in pySession’s destructor (#38167)