statistics: data's truncate_before(time_point) and truncate_after(time_point) methods added.
bindings/python: Data's truncate(before, after) method added.
utils/aggregate_log: return timestamp along with aggregated dump.
debian: get rid of cdbs, use dh instead (Lucid is not supported anymore).
CMake: don't build bindings, utils and benchmarks by default.
binding/python: build/install with setup.py.
utils: separate CMakeLists.txt added.
Combaine plugin added.
debian/control: remove build dependency on cdbs.
debian/control: specify minimum cython version (use ppa).
utils: pylint fixup.