Check for args before checking args.cb -- Related to #1754
Modify init script to support custom log_file & add sample usage
Fix for #1789. Use rdb_value_non_deleter_t instead of rdb_value_deleter for sindex operations.
Backport of daniel_755 to v1.11.x
adding 'db.table' notation to admin cli
updating help messages to reflect availability of 'db.table' in admin cli
Fix for #1824, CR 1107
changing text of multiple_choices_exc_t message to be more helpful
fixing crash when changing conflicted semilattice value without resolve
added varint dependency to ruby driver
streaming bugfix
Init script: fail when given an unknown command

Closes #1779
Review 1112 by @mlucy
Merge pull request #1769 from PJK/custom_log_file

Modify init script to support custom log_file & add sample usage

Pull request #1769 reviewed by @atnnn
Made count queries not load values.
Merge branch 'v1.11.x' into next

Conflicts:
	src/arch/runtime/message_hub.cc
	src/utils.hpp
Merge branch 'next' into sam_alt

Conflicts:
	src/rdb_protocol/btree.cc
	src/rdb_protocol/lazy_json.cc
	src/rdb_protocol/lazy_json.hpp
Merge branch 'sam_alt' into sam_alt_snap
Merge branch 'sam_alt_snap' of github.com:rethinkdb/rethinkdb into sam_alt_snap