Support selection from .aux files using non-standrad bibliography styles, such as harvard. Guess citation command from the file. 
Support selection from .aux files using non-standrad bibliography styles, such as harvard. Guess citation command from the file. 

JackieXie168/skim,JackieXie168/skim,JackieXie168/skim,JackieXie168/skim,JackieXie168/skim