Merge pull request #223 from TonicAudio/development

Merge to master
Fixed Demo Synths link in README.md
Merge pull request #232 from mhetrick/patch-1

Fixed Demo Synths link in README.md
Update README.md

Highlighting C++ code
Merge pull request #238 from TonicAudio/development

Merge development to master
Update LICENSE to the unlicense
Merge pull request #237 from bartolsthoorn/patch-1

Update README.md
Merge branch 'master' into development