moved profiling code to testbed
moved commons-math dependency to testbed project
added commons-math twice in my silliness
renamed world package to worlds as before
moved profiling code to testbed, removed commons-math dependency from library project

moved profiling code to testbed

moved commons-math dependency to testbed project

added commons-math twice in my silliness

renamed world package to worlds as before
Merge branch 'master' of https://github.com/badlogic/jbox2d
Merge pull request #13 from badlogic/master

Move profiling code to testbed, remove dependency on apache math for the main project.  Sorry if this breaks your stuff :( it's cleaner this way.