Fixed tools tests
Updated valgrind suppressions
ham_bench can now bulk-erase all keys at the end
Copyright is now 2014
Removed cache; it's now part of the PageManager
Removing HAM_CACHE_FULL and HAM_CACHE_STRICT
Rewriting unittests of cache.cpp -> page_manager.cpp (WIP)
Reactivated unittests in cache.cpp and log.cpp
Page size is now variable; WIP, big changes