Added brief warning about building on Windows
(doc) an improvement of Japanese in CONTRIBUTING.md

Improved Japanese in CONTRIBUTING.md
Merge pull request #58 from Nyoho/doc-improve-japanese

(doc) an improvement of Japanese in CONTRIBUTING.md
Fix issue in Windows where PMXViewer runs faster than 60fps
GLFW cmake Module

add cmake FindSOIL Module

add cmake Module for GLM

add Top CMakeLists.txt

add CMakeLists.txt for libmmp

add CMakeLists.txt for pmx

search iconv for msys+mingw

name set of libraries to libmmp_dep

use libmmp_dep variable

use mingw system iconv and reorder library files

reorder link libraries