Fix default prefs and replace update by merge in pref plugin.
Fix TaskSelector init.

Previously an initial filter was not used.
Fix make wait logic in base_tasks.
Add log10, sqrt, atan2 to supported function in database string formatter. Rename cmath as cm.
True fix of make wait (previous changed RootTask view).
Fix LoopTasks and tweak some views.
Add some memory for path in measures.
UI tweaking.
Making ProcessEngine subprocess daemonic.
Add automatic redirection of Stdout and Stderr to log.