Add PATCH support
Add PATCH support

Added superficial PATCH support. Needed for Oboe.js tests to pass
sandy98/node-simple-router,MathieuCassagne/node-simple-router,sandy98/node-simple-router,MathieuCassagne/node-simple-router,GiorgioRegni/node-simple-router,sandy98/node-simple-router,MathieuCassagne/node-simple-router,GiorgioRegni/node-simple-router,GiorgioRegni/node-simple-router,GiorgioRegni/node-simple-router,GiorgioRegni/node-simple-router,MathieuCassagne/node-simple-router,MathieuCassagne/node-simple-router,sandy98/node-simple-router,sandy98/node-simple-router,MathieuCassagne/node-simple-router,MathieuCassagne/node-simple-router,sandy98/node-simple-router,GiorgioRegni/node-simple-router,MathieuCassagne/node-simple-router,GiorgioRegni/node-simple-router,GiorgioRegni/node-simple-router,sandy98/node-simple-router