411458  MultiPartFilter getParameterMap doesn't preserve multivalued parameters
411459  MultiPartFilter.Wrapper getParameter should use charset encoding of part
Merge remote-tracking branch 'origin/jetty-7' into jetty-8

Conflicts:
	jetty-servlets/src/main/java/org/eclipse/jetty/servlets/MultiPartFilter.java
	jetty-servlets/src/test/java/org/eclipse/jetty/servlets/MultipartFilterTest.java