ev_stat already uses inotify. Patch libev to add support for
nanosecond timestams in struct stat.

Reorder initialization of yield/rollback triggers.
Add implicit rollback on error in interactive mode, to match
call/eval on a remote host.
Add error injection to tuple allocation code, to be able to
test the case when there is no memory for a new tuple.
Add tests.

Remove regular expressions from console API, they are unacceptably slow.

Add forgotten .result files

This saves one malloc() per channel and tells the GC more
about how much memory is taken by a channel.

tarantoolctl: Don't assume sophia_dir is a subdir of vardir,
create everything on the top level.

tarantoolctl: marginally fix reload, but see gh-824

fio: fix numerous bugs with failure of lua_tostring(), add tests.

A minor style fix, update result file.

* INDEX_EXTENT_SIZE changed back to 16kB

Add tests.

Don't register second-level modules (e.g. box.info) in package.loaded

Conflicts:
	src/lua/bsdsocket.lua
	test/box/bsdsocket.result

Also fix :send() and :write()

* Minor fixes of matras

Conflicts:
	src/lua/digest.lua
	test/box/digest.result
	test/box/digest.test

Add a functional test for statement-level rollback.

Check that rollback actually frees the rolled back data in wal_off/oom.test.
Also check that slabs are reused and returned to the pool when they
have no tuples.

Prerequisite for #817. Other changes:

 - Add IteratorGuard structure to call iterator_close().

* implement two new calls:
  box.error.last() - returns last error, if any, as a Lua table
  box.error.clear() - clears the last error

* add an alias for box.error(), box.error.raise()

 - mysql moved to https://github.com/tarantool/mysql
 - pg moved to https://github.com/tarantool/pg

Please consult documentation on GitHub for more details.

Encapsulate trigger management, as well as undo managemnt
specific to memtx in the engine. Fix a potential memory leak
in MemtxEngine::rollbackStatement(), with wrong reference counting
for rolled back tuple.

Always generate redo record, even in wal_off=true mode, this
simplifies txn_commit().