Repackaging for org.basepom

- add NOTICE.txt, change license headers
- repackage from com.ning to org.basepom
move readme out of the way
Fix package exclusion bug.

Excluding a package used to match also package names that were a
prefix to longer package names.
make default value for useResultFile match the annotation.
Add resultFileMinClasspathCount flag

When writing the result file, it becomes really large for big projects
because every entry on the classpath is listed out in the file. This
flag sets a minimum count of classpath occurences for the files
written into the result file. Default setting is 2 occurences so any
file or class that is unique on the class path will not be listed.