Fix FELIX 4509
Change the way frames are computed. This commit removes the previous "retroweaving" hack, and relies on ASM to compute frames. A simple extension of ClassWriter is provided to change the way ASM is implementing the getCommonSuperClass method.
  It also improves a bit the code of the iPOJO API by using generics and for each loops

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@1592381 13f79535-47bb-0310-9956-ffa450edef68