Update mans, docs.

A lot of resources still need to be updated (build scripts, etc).

 * Install *.lua modules into ${DATADIR}/tarantool/1.5
    and *.so modules into ${LIBDIR}/tarantool/1.5
 * Fix default package.path and package.cpath
 * Install Lua headers to ${INCLUDE_DIR}/tarantool/1.5
 * Install config.h to ${INCLUDE_DIR}/tarantool/1.5
 * Add a new package - tarantool-dev (server development headers)
 * Use RPM Macroses in rpm.spec
 * Fix tarball generation for Debian
 * Use GNUInstallDirs.cmake to setup directories

Fix debian/copyright (closes lintian warning).

logger.pl by default, removed tarantool-client package (moved to main
		package)

and man file

- removed SIGUSR2 forwarding
- removed logger and pid command line arguments
- moved man pages generation to doc/man/
- added logger_pid to show info output
- changed instance config preformating scheme