replace simple mapping url decoding w/ apache commons port
replace simple mapping url decoding w/ apache commons port

Port some classes from apache.commons.codec to BlackBerry-JRE OS7.1.0.
java.util.Comparator and java.security.NoSuchAlgorithmException were added
manually to apache.commons.util and apache.commons.util.security.

Classes not available in the RIM JRE (java.util.Comparator,
java.util.BitMap, java.security.NoSuchAlgorithmException)
have been replaced, e.g.  java.util.BitMap -> java.util.Vector