Add greplog. Fixes gh-516

1) server.get_log(); server.seek_once(msg) -- since we get log object
2) server.logfile_pos.seek_once(msg) -- since the start of server
Multiple changes:

0) DIST.LUA: Move dist.lua to tarantoolctl (+ DEB + RPM + DOCS)
0) DIST.LUA: Delete -w option
1) CMAKE: Add pod2man function for generating MAN Files from POD format
2) RPM: Add man files for tarantoolctl, move tarantoolctl+initscripts
from `tarantool` into `tarantool-common`
3) DEB: Remove tarantoolctl.1 creation
4) Remove trailing whitespaces

Fixes gh-570
Fixes gh-557
Extract input package from rbuf before parsing. closes #595
Fix #169: box.schema.space.bless() is not called during recovering snapshot

The bug is already fixed and tests cases are already added.
This patch removes unused fix_lua hack from schema.cc.
CR(rtsisyk) Fixes
Update Debian infrastructure.
Merge branch 'stable'

Conflicts:
	debian/changelog
	debian/control
Conflicts/Replaces with tarantool-lts.
Typo in Conflicts record.
All packages conflicts with tarantool 1.5.
Review fixes for gh-557-570-rpm-dist-man

Minor changes in cmake code style
Merge remote-tracking branch 'origin/master' into gh-557-570-rpm-dist-man
Fix some lintian issues.
Fix copyright lintian issues
Merge branch 'stable'

Conflicts:
	debian/changelog
	debian/control
	debian/rules
	debian/tarantool-lts.lintian-overrides
Merge branch 'master' of github.com:tarantool/tarantool
[docs] Fix for builds (pod2man --stderr) on CentOS 5
fixed gh-512: a better error message in the log (failed to allocate memory); a pair of minor fixes
Merge branch 'master' into sophia-gh-577