Another update

1. 8566f45 model: Adding "new" content store with ability to track lifetime of entries by Alexander Afanasyev · 12 years ago
2. 991a0cc model: Generalizing content store implementation by Alexander Afanasyev · 12 years ago
3. bd9c18e Solving a couple of bugs resulting from the packet format changes. Code compiles, but haven't fully tested yet by Alexander Afanasyev · 12 years ago
4. 1a2df6a Small reorganization of utils/ folder contents by Alexander Afanasyev · 12 years ago
5. 29c19b9 Content Store extension. Now it supports the same enumeration interface available for PIT and FIB by Alexander Afanasyev · 12 years ago
6. 2b4c947 Another set of refactoring by Alexander Afanasyev · 12 years ago