tipsy object proxy method tolerates null object and now returns `this`. closes #17
tipsy object proxy method tolerates null object and now returns `this`. closes #17
jlsherrill/tipsy,jaz303/tipsy,justintung/tipsy,wlaurance/tipsy-browserify,CliftonH/tipsy,CloCkWeRX/tipsy,jaz303/tipsy,atlassian/tipsy,bigmlcom/tipsy,modulexcite/tipsy,rakesh-sankar/tipsy,CliftonH/tipsy,samuelcole/tipsy,atlassian/tipsy,CloCkWeRX/tipsy,bigmlcom/tipsy,1999/tipsy,etlgfx/tipsy,rakesh-sankar/tipsy,jlsherrill/tipsy,justintung/tipsy,DataDog/tipsy,MartinMartimeo/tipsy,modulexcite/tipsy,DataDog/tipsy,etlgfx/tipsy