fix error message typo
fail on error executing build for per sdt version plugins
improve java .classpath commands

main change is that :NewJarEntry can now take 3 args, the jar, the src
jar, and the javadoc path.
translate jar urls during the search so that vim can always open the urls
update code completion plugins doc
work around autochdir side affect of setbufvar when setting location list
on xml validate on dtd not found exception, make that an error marker
on xml validate, display error if project not found
fix project commands test to not depend on test order
fix junit tests to sort the response to account for indeterminate test order w/ java 7
update docs for 2.3.0/1.7.17 release