and set libknot_SONAME and libzscanner_SONAME as lua literals.

Remove now obsolete libpath lua function - use find_soname from
platform.mk to define <arg>_SONAME, add lua_pushliteral to
daemon/engine.c and add -D to daemon/daemon.mk for any new library
loaded from Lua.

This is a fully-socket-activated knot-resolver service that can run as
a non-priivleged user named knot-resolver.

this module is superseded by http module, removing

amalgamated build concatenates all files into a single .c file to
allow compiler see all symbols and produce possibly smaller code.
for binary distributions this is what you want, as it's faster but
may consume more memory during compilation.
it however cannot do incremental builds.

also some cleanup and version bump to Q2

This reverts commit 17fd0612.

This reverts commit 17fd0612.