1. Make `=` to be optional in `setopt delimiter 'string'`
2. Make support of multiline delimiters
rpm-start-activecheck: check for the active tarantool instance
before starting another one.
Fix for CR from pmwkaa
New debian package.
Fix build process on Debian/FreeBSD and BSD.

 * sys/prctl.h can be found only on Linux, but cmake recognizes Debian/kFreeBSD
 as Linux.
 * extern "C" for TIMEOUT_INFINITY (it is used in plugins)
New Debian snapshot.
Fix debian/rules clean section (cleanup CMake files).
Remove tarantool/config.h pointedly (Debian/BSD).
Drop BSD dependencies in Debian/kFreeBSD.
New Debian upload.
1. Get port number from admin connection
2. delete setopt and delimiter contractions
1. Get port number from admin connection
2. delete setopt and delimiter contractions
Add backwards compatibility
Fix CR style errors
Continue adding test coverage for the new data dictionary: ALTER INDEX.

Debug index:alter().
Add tests for changes in index id, name, type, unique/not unique.
Make box.space[i].index[j] output yaml-parsable (- idx: index 0
parsing problem).
Merge branch 'rpm-start-activecheck' into stable
Continue covering MODIFY INDEX with tests.

Implement tuple validation when building a new index.
This introduces such checks as for field type, presence of a field,
etc. in all tuples added to the new index.

Add error code ER_INDEX_ARITY, update tests.

Add a check that the primary key is always unique.

Test unique -> non-unique transition.
Add first support of python backend for TT. Still need to add support of error code (now it return 0 everytime)
macosx: MacOS X doesn't have sigtimedwait()
Merge branch 'stable'