* public/memcached-expire-stat:
  [box] Enable accidently disabled expire in memcached mode.
  [box] Repair memcached statistic. 	* Enable statistic collection. 	* Add counter of expire rate.
  [core] Better param name in stat_register()
  [core] Fix bug causing last stat value being ignored.

* public/core-cfg_get:
  [core] cfg_get: return 1 if param is missing in config file
  [core] add --cfg_get option

Merge remote branches 'public/fiber-raise', 'public/core-pull_from_remote_exit' and 'public/core-remote_state_to_header'

* public/fiber-raise:
  [core] Add ability to raise an exception in the other fiber.

* public/core-pull_from_remote_exit:
  [core] exit from 'remote hot standby' fiber in case of EXIT_FIBER exception

* public/core-remote_state_to_header:
  [core] move remote_state to log_io header

	* Enable statistic collection.
	* Add counter of expire rate.

Going forward, 'test' will contain tests. Do not delete
it in make clean.

Make links to launchpad proper urls.
Fix spelling.

Update TODO file in the source directory:
 - migrate incomplete items to launchpad
 - remove completed tasks
 - add a reference to launchpad.

[box] [client] [perl] Fix _validate_params() not to clobber a param. Fix update/splice for compatiblity with older perls.

https://blueprints.launchpad.net/tarantool/+spec/pool-palloc-pool

* unstable: (140 commits)
  [box] add unique property to memcached index
  [core] repair statistics
  [core] remove limit of 4MB packet size between parent and child
  [core] mention about GNU make requirement
  [core, box] write cookie in span too
  [box] fix snap printing
  [core] fix memory leak when saving snapshot
  [core] partially rollback 8cb4a2b4, make incremental builds work again
  [core] repair reading of v04 snaps
  [core] update confetti: added property 'required'
  [core] flush stdio buffers when writing wal
  [feeder] support for tagged rows
  [core] remove cfg.h file hack, tweak scripts/indent
  [core] fix bug: cookie is 64 bit
  [core] default tags are negative
  [core, box] row dispatch based on tag
  [box] [client] [perl] hash_by
  [core, box] wal_write and snapshot_write row now explicitly require tag and cookie
  [core, box] support for cookie in WAL
  [core] refactor read_u{8,16,32,4}
  ...

* hotfix-snap-v04:
  [core] repair reading of v04 snaps

* xlog_ng: (22 commits)
  [feeder] support for tagged rows
  [core] fix bug: cookie is 64 bit
  [core] default tags are negative
  [core, box] row dispatch based on tag
  [core, box] wal_write and snapshot_write row now explicitly require tag and cookie
  [core, box] support for cookie in WAL
  [core] refactor read_u{8,16,32,4}
  [core] better error handling on remote recovery
  [core] add missing exception handling when recovering WAL
  [core] flush when saving snapshot
  [core] cleanup logflushing logic
  [core] refactor io rate limiting
  [core] remove dead code
  [core, box] support for configurable behavior on recovery errors
  [core, box] move snap_io_rate_limit to module specific initialization
  [core] use buffered read when doing recovery
  [core] fix packet length calculation
  [core] close connection to feeder in case of error
  [box] now replica reports its lag
  [core] hide v04 stuff
  ...