v0.5.1

Bugfix: The handler thread was not shutdown correctly, when unloading a pattern.

v0.5

REST management interface, allows at runtime of Sparkwave to load, unload and get patterns.
Implemented ID() function for pattern construct part: returns the unix timestamp which can be used as unique identifier
Logging to console and file (sparkwave.log) is enabled

REST interface:
The following URL's are available:
http://localhost:9998/patterns/ GET(all patterns),POST(new pattern)
http://localhost:9998/patterns/{id} GET(specific pattern),DELETE(specific pattern)
Note: Content-Type must be application/json (in the request header).