Lock down project names, add save button to the toolbar, and add view logs menu item

[jonko0493]

Fixes #218.

• Project names now have a set of valid characters; attempting to type or paste invalid characters will result in input being canceled.
• Add a save button toolbar (feedback from user study)
• Add a view logs button to the Application/File menu (makes it easier to access the logs file; also feedback from user study). The button opens the SerialLoops.log file with the system associated program for viewing log files.

[WiIIiam278]

Looks good :)