New action state machine log

Closes #113 (closed) And also:

• offers a new design of the XML viewed in the browsers
• embed xsl for modern browser support (tested with latest chromium and firefox)
• log xml cleanup
• check that the asm arguments are both present before enabling the launch (and show in red what's missing)
• fix a crash due to double delete (QTreeWidgetItem should only be deleted from children to parent, if a parent QTreeWidgetItem is deleted before its children, it generates a segfault)
• new: 5 tests were added for the action state machine app (3 for command line test and 2 using the autonext feature using simple SCXML files and testing there is no crash)