reverts commit 19343e71

This patch adds `src/module.h` header file with definition of all public
API functions suitable to use in Lua/C modules for Tarantool. This header
is automatically generated from src/*.h by CMake (`make generate_module_api`)
by extracting code blocks between /** \cond public */ /* \endcond public */
Doxygen-style comments.

Definitions of functions in module.h are frozen and must not be changed by
future commits/releases. A new test case `app/module_api` is added to check
compilation, linkage and loading of Lua modules and functionality of
provided API functions.

Other changes:

 * Convert mysql and pg to use module.h and prepare to convert to .c
 * Fix includes in say.h, coeio.h
 * Rename luaL_pushnumber64 to luaL_pushuint64 and
          luaL_pushinumber64 to luaL_pushint64
 * Add LUA_API macros to public luaL_* functions (actually adds extern "C")

libcore is a thick a thick bundle with almost everything.
Rename it to libserver.

Extract the minimal server core with fibers & exceptions into libcore.

Add a prototype unit test for fibers.

Fix a bug in iovec_join which would overwrite data of
the first iovec with subsequent iovecs.
Double the default buffer size.

 * Split parser and resolver in src/uri.rl
 * Extend URI parser grammar to fully support RFC3986
 * Add Lua bindings to URI parser
 * Implement proper DNS logic in coio_connect() /
   evio_service_bind()
 * Replace uri_to_string() with sio_strfaddr()

Prerequisite for #447

Add a throwaway spot memory pool to recovery.

Major changes:

 - All common logic and code from all serializes replaced by
   luaL_field/luaL_serializer functions
 - All features and methods were unified
 - cdata support added to JSON
 - ffi's .NULL added to JSON
 - .cfg{} method added to MsgPack, YAML and JSON
 - .new() method added to MsgPack and YAML
 - NaN and Inf checks ported from JSON
 - array vs map detection logic ported from JSON
 - support for __serialize hint added for table/cdata/userdata
 - _serializer_compact and _serializer_type superseded by __serialize
 - 64-bit integers encoding/decoding fixed in JSON and YAML
 - floating point encoding/decoding fixed in YAML
 - JSON was converted from submodule
 - New TAP-based tests added for MsgPack, MsgPackFFI, YAML, JSON

Use internal variant of SHA1.

closes #405

Never attempt to automatically rebuild uri.cc during build.
This is a revision controlled file. A developer can
now rebuild it manually with 'make ragel'

1) Backport `path_find`
2) Disable debuginfo in RPM
3) Disable failing part of BSDSocket test

This patch adds Test Anything Protocol (http://testanything.org/)
producer. TAP is a standardized output format for unit tests.

Fix Mac OS X Lion build by not adding -rdynamic by default.
Only use -rdynamic on Darwin (Konstantin Knizhnik's Mac).

Use underscores instead of dashes in file names.
Use 0 for success -1 for error.

Update code and tests.

This patch adds a new Lua module called 'pickle'. This module incorporates
former box.pack() and box.unpack() functions. These functions removed from
core because they are not needed for box anymore. This patch also removes all
box-specific formats from these functions.

* error(fmt, args)
* warn(fmt, args)
* info(fmt, args)
* debug(fmt, args)