build 

fix libraryTarget = 'umd'; 

Add script to import: 

Update devtool 

fix lian-yue#35 lian-yue#37 

fix lian-yue#29 

fix lian-yue#29 

fix lian-yue#26 

fix lian-yue#24 vue 2.1.x 

fix lian-yue#20