This patch add specialized versions of box.process for select, insert,
replace, update and delete requests. This optimization reduces the
number of Lua <-> C switches during request processing. New functions
create struct request directly without allocating temporary buffer for
entire request body.

Conflicts:
	src/box/box_lua.cc

This is a NULL-merge.

there are no --append parameter in OSX tee cmd, only -a

by https://github.com/tarantool/tarantool/wiki/Lua-API-1.6-%28ru%29#wiki-select

Conflicts:
	CMakeLists.txt
	doc/user/stored-procedures.xml
	doc/user/tutorial.xml
	extra/rpm.spec.in
	src/salloc.cc
	test/big/suite.ini
	test/box/admin.result
	test/box/configuration.result
	test/box/lua.result
	test/memcached/off.result

Rationale:
Any error which implies a system administrator action needs to be
marked explicitly in the log, so that it's easy to find and act
upon.

This change the number of log levels, so the default log level was
bumped from 4 to 5. Installations which set the log level
explicitly need to adjust their setting.

Switch the parser to use msgpack for request body.
Update the python driver and tests.

net.box.test is disabled.

Use object-oriented counterparts instead.

Split lua.test.py into a few smaller tests. Remove box.select().
Rename a few tests to follow the common scheme (feature = test name).

closes #171

Change:
    box.space.name:insert() to box.space.name:insert{}
    box.space.name:replace() to box.space.name:replace{}
    box.space.name:delete() to box.space.name:delete{}
    box.space.name:auto_increment() to box.space.name:auto_increment{}
    box.space.name:select() to box.space.name:select{}
    box.space.name:update() now requires an explicit key and ops
    table.

Remove ellipsis from wrappers which don't strictly need it.
Remove backward-compatible next_equal/next/prev_equal/next/prev
iteration functions.
Cleanup hot_standby.test

Implement a complete index:alter{} binding in Lua.
Use alter consistently in the test suite

Make index type optional when creating an index.