Removed unused btree_slice_t from btree_depth_first_traversal.
Removed some btree_slice_t parameters.
Removed RSIs.
Removed boost/tokenizer.hpp from core.cc.
Moved scoped_key_value_t implementations to the .cc file.
Moved counted_buf_lock_t to depth_first_traversal.cc.
Removed alt.hpp from depth_first_traversal.hpp.
Removed depth_first_traversal.hpp from btree.hpp.
Added a copyright notice.
Added stop_traversing_t for depth first traversal.
Revert "Added stop_traversing_t for depth first traversal."

This reverts commit 8ecbfa1e1924267e113f4d0b0e3a4fc3e126bcb0.
Made depth_first_traversal use done_t.
Renamed done_t to done_traversal_t.
Removed stl_utils.hpp from fifo_enforcer.hpp.
Moved invert_bijection_map to stat_app.cc.
Removed stl_utils.hpp from json_adapter.tcc.
Removed stl_utils.hpp from vclock.tcc.
Removed stl_utils.hpp from clustering/administration/http/json_adapters.tcc.
Removed <string> from runtime_utils.hpp.
Merge branch 'sam_inc_iii' into sam_inc_iv

Conflicts:
	src/rdb_protocol/btree.hpp