Added cmake files.
https://github.com/msgpack/msgpack-c/pull/20
Removed 'preprocess' from original CMakeLists.txt.
Removed file copy from original CMakeLists.txt.

Removed 'preprocess' from bootstrap.
Removed file copy from bootstrap.

Added erb generated files. Ruby is no longer required.
Moved cases.mpac, cases_compact.mpa, pack_define.h,
pack_template.h, unpack_define.h, unpack_template.h,
and sysdep.h to apropriate location.

If you want to re-generate zone.hpp, define.hpp, and tuple.hpp,
then you execute preprocess.
Supported shared library on cmake.
Updated the documentation.
Supported make install.
Removed vc2008 files from make dist.
Added the SOVERSION same as autotools.
Set CMAKE_MINIMUM_REQUIRED to 2.6.4.
Fixed major_version and minor_version.
Fixed relase_version.
Added msgpack.pc creating proccess.
Modified the way to install msgpack headers.
Added warning flags.
Added -DPIC option on shared library.
Added -O3 -g option for gcc and clang. Improved compiler checking method.
Merge branch 'mpapierski-cmake'