changed string to char
min delay bugfix and test
removed empty testcase
enhancement of listener interface
removed old useless class
added identity check to equals method
identity check to equals method
removed unused imports
unused imports removed
unused formats removed
extracted constant into configuration class
named thread
enhanced interface
comments changed
state transitions improved
Merge branch 'master' of https://github.com/iiljkic/utp4j.git

Conflicts:
	src/main/java/ch/uzh/csg/utp4j/data/UtpPacketUtils.java
	tests/main/java/ch/uzh/csg/utp4j/data/bytes/UtpPacketUtilsTest.java