Merge pull request #46 from vdjeric/master

Symbolication requests should specify client's app & OS
Release update for thunderbird symbolication
Add basic code to handle sub thread profiles
Release update for plugin profiling
Rebuild
Update default paths
Add the unwinder feature
Add threads feature
Release 1.11.15 to support selecting unwinder+threads
Add support for timelines
Add profileJava pref for java profiling feature
Release update 1.11.16
Remove canvas
Add pref for memory timeline
Release profiler update 1.12.0
Fix profiler panel by restoring sps_toggle_active