Added ascii-based histogram
Improved output readability
Added cluster distribution histogram
To be commented and refactored
Added code for DamerauLevensthein distance (from K.L. Stern)
KlustTest3 for testing distances
Merge remote-tracking branch 'origin/master2'

Conflicts:
	klust/src/main/java/org/as/beehive/klust/OlisticDistanceMeasure2.java
	klust/src/test/java/org/as/beehive/klust/KlustTest3.java
	klust/src/test/java/org/as/beehive/klust/sample2.txt