Cache: Cache_page_proportions free bug fixed
Merge branch 'master' of https://github.com/reverbrain/elliptics into cache_treap
Merge pull request #289 from IIoTeP9HuY/cache_treap

Cache config bug fix
gitignore: Added to ignore list debuild's garbage
Tests: Restructurization

Separated cache-specific test case to separate binary.
Added ability to specify remote nodes for dnet_cpp_test.
tests: Report tests result at detail level
tests: Added automatic srw_test
Client: Make session to store only weak-reference to node
Core: Fixed memory leak of namespace
Client: Removed guardians around elliptics node in session

It leads to several bugs when node can be destructed from the
io thread.
tests: Implemented Cocaine integration tests