Uebung 10 implementiert
added ctags file to .gitignore
tried merge the exercises from sem01 and sem02 but got this mess instead!
I am officially a moron!
fixed everything that's been broken by the restructuring.
using better names for build targets
refactored all search algos into their own modules
implemented distribution counting
fixed ant build target. no need to call clean everytime. added "rebuild"