issue #4692: change liquidfun submodule location
issue #4692: fix android setting.
issue #4692: fix vs setting.
issue #4692: fix android setting.
Merge pull request #12 from boyu0/iss4692_liquidfun_sample

issue #4692 liquidfun sample
Compiles on iOS and Mac
Merge pull request #13 from ricardoquesada/fixes_compile_issues_xcode

Compiles on iOS and Mac
issue #4692: add condition to update the VBO.
issue #4692: fix the app name.
Adds `project.properties` to .gitignore
Merge pull request #15 from ricardoquesada/gitignore_updated

Adds `project.properties` to .gitignore
Merge pull request #14 from boyu0/iss4692_liquidfun_sample

issue #4692: add condition to update the VBO buffer.
Upgrades to v3.1
Merge pull request #16 from ricardoquesada/to_v_3_1

Upgrades to v3.1
Don't include box2d documentation in project
Merge pull request #17 from ricardoquesada/xcode_fixes

Don't include box2d documentation in project
- added GAF
- updated setup scripts
+ added readme.txt
- updated readme.txt