Added tests for hairpins
Added tests for hairpins

Agamnentzar/vexflow,zex713/vexflow,clecap/vexflow-musicxml,clecap/vexflow-musicxml,Charlie-Wellesley/vexflow,velochy/vexflow,avorio/vexflow,Kosar79/vexflow,Nairam/vexflow,smarmit/vexflow,rochbu/vexflow,burnnat/vexflow,aaronmars/scottish-writer,amitgur/vexflow,jbernie2/vexflow,jcrogel/vexflow,zz85/vexflow,Chipairon/vexflow,guert/vexflow,mariushe/vexflow,vmoll/vexflow,cdosborn/vexflow,ravenac95/vexflow,johndpope/vexflow,streuth/vexflow,clecap/vexflow-musicxml,LarryKu/vexflow,pinxue/vexflow,lasconic/vexflow-musicxml,Petezah/vexflow,fgeorgy/vexflow,trinketapp/vexflow,ecompositor/vexflow,bsouthward/vexflow,toni07/vexflow,rukor/vexflow,zan2434/comuse,wuqi/vexflow,mcanthony/vexflow,FatPanther/vexflow,JanvanCasteren/vexflow,redreamality/vexflow,bsouthward/vexflow,Silverwolf90/vexflow,tschmidt23/vexflow,zachledoux/vexflow,spencerhitch/vexflow_extended,zex713/vexflow,aaronmars/vexflow,cdosborn/vexflow,raffazizzi/vexflow,mcanthony/vexflow,dhruvrajan/vexflow,3logy/vexflow,LarryKu/vexflow,winning1120xx/vexflow,dfcreative/vexflow,bwbohl/vexflow,tschmidt23/vexflow,voidest1/vexflow,Tails/vexflow,rukor/vexflow,jmahmud/vexflow,fabienric/vexflow,natedsaint/vexflow,zolaemil/vexflow,ohoushyar/vexflow,Daremyth/vexflow,Fabrico/vexflow,dfcreative/vexflow,fabienric/vexflow,bsouthward/vexflow,jmahmud/vexflow,wander2001/vexflow,ravenac95/vexflow,DigitalCoder/vexflow,amitgur/vexflow,DigitalCoder/vexflow,cpill0789/vexflow,raffazizzi/vexflow,Petezah/vexflow,IcculusC/vexflow,aaronmars/vexflow,alexmao86/vexflow,guert/vexflow,aaronmars/scottish-writer,Mdonmounts/vexflow,ssoRL/vexflow,burnnat/vexflow,bwbohl/vexflow,redreamality/vexflow,zolaemil/vexflow,petehamilton/vexflow,velochy/vexflow,natedsaint/vexflow,Huji/vexflow,redreamality/vexflow,ssoRL/vexflow,RSid/vexflow,cute/vexflow-musicxml,bpartridge/vexflow,bpartridge/vexflow,RSid/vexflow,toni07/vexflow,springzh/vexflow,arthurian/vexflow,jdowner/vexflow,zex713/vexflow,ohoushyar/vexflow,aaronmars/scottish-writer,wander2001/vexflow,smarmit/vexflow,guert/vexflow,bwbohl/vexflow,vmoll/vexflow,fgeorgy/vexflow,ssoRL/vexflow,ravenac95/vexflow,liuyang1204/vexflow,alexmao86/vexflow,streuth/vexflow,aaronmars/vexflow,humnotation/vexflow,winning1120xx/vexflow,shuanzi/vexflow,amitgur/vexflow,toni07/vexflow,Huji/vexflow,cpill0789/vexflow,raffazizzi/vexflow,smarmit/vexflow,wuqi/vexflow,zan2434/comuse,mwicat/vexflow,alexmao86/vexflow,johndpope/vexflow,wander2001/vexflow,JasonLil/vexflow,voidest1/vexflow,rochbu/vexflow,bpartridge/vexflow,aerhard/vexflow,niklasgrahl/vexflow,cute/vexflow-musicxml,zolaemil/vexflow,Kosar79/vexflow,3logy/vexflow,JanvanCasteren/vexflow,zan2434/comuse,JasonLil/vexflow,mwicat/vexflow,Charlie-Wellesley/vexflow,burnnat/vexflow,niklasgrahl/vexflow,JasonLil/vexflow,petehamilton/vexflow,Tails/vexflow,spencerhitch/vexflow_extended,toni07/vexflow,cgamache/vexflow,velochy/vexflow,jbernie2/vexflow,vikeen/vexflow,liuyang1204/vexflow,niklasgrahl/vexflow,jmahmud/vexflow,DigitalCoder/vexflow,dhruvrajan/vexflow,zz85/vexflow,avorio/vexflow,winning1120xx/vexflow,pinxue/vexflow,incompleteopus/vexflow,zachledoux/vexflow,incompleteopus/vexflow,mwicat/vexflow,Tails/vexflow,incompleteopus/vexflow,vikeen/vexflow,cgamache/vexflow,gaborveszpremi/vexflow,rukor/vexflow,trinketapp/vexflow,ohoushyar/vexflow,gaborveszpremi/vexflow,aerhard/vexflow,IcculusC/vexflow,Silverwolf90/vexflow,Mdonmounts/vexflow,cute/vexflow-musicxml,lasconic/vexflow-musicxml,Kosar79/vexflow,Nairam/vexflow,mcanthony/vexflow,jcrogel/vexflow,liuyang1204/vexflow,nybbs2003/vexflow,Daremyth/vexflow,clecap/vexflow-musicxml,FatPanther/vexflow,dfcreative/vexflow,mariushe/vexflow,Agamnentzar/vexflow,Silverwolf90/vexflow,dhruvrajan/vexflow,gaborveszpremi/vexflow,jcrogel/vexflow,wuqi/vexflow,lasconic/vexflow-musicxml,zz85/vexflow,arthurian/vexflow,Nairam/vexflow,Daremyth/vexflow,Chipairon/vexflow,avorio/vexflow,springzh/vexflow,cgamache/vexflow,aerhard/vexflow,Fabrico/vexflow,natedsaint/vexflow,LarryKu/vexflow,ringw/vexflow,3logy/vexflow,cdosborn/vexflow,ecompositor/vexflow,spencerhitch/vexflow_extended,Petezah/vexflow,streuth/vexflow,trinketapp/vexflow,Charlie-Wellesley/vexflow,Chipairon/vexflow,Huji/vexflow,voidest1/vexflow,rochbu/vexflow,springzh/vexflow,cute/vexflow-musicxml,nybbs2003/vexflow,humnotation/vexflow,fabienric/vexflow,zhhz/vexflow,zhhz/vexflow,IcculusC/vexflow,Fabrico/vexflow,humnotation/vexflow,Mdonmounts/vexflow,cpill0789/vexflow,JanvanCasteren/vexflow,nybbs2003/vexflow,pinxue/vexflow,Agamnentzar/vexflow,jdowner/vexflow,jdowner/vexflow,tschmidt23/vexflow,vmoll/vexflow,ecompositor/vexflow,fgeorgy/vexflow,arthurian/vexflow,shuanzi/vexflow,FatPanther/vexflow,petehamilton/vexflow