Added possibility to parse amount of tunnels that are to be created from
an external config file.
Modified creation of tunnels to accept an integer value to determine how
many tunnels shall be created.
Had to put return in if-condition to force return from checkTeleport(),
otherwise massive IndexOutOfBounds-Exception!
Included amount of tunnels.
Checkstyle.
Checkstyle.
Checkstyle.
Minor PMD fixes.
Checkstyle.
Updated config-file for arena1.