added functions to show groups matching any/all selected entry/entries
added functions to show groups matching any/all selected entry/entries


Siedlerchr/jabref,tobiasdiez/jabref,tschechlovdev/jabref,mairdl/jabref,JabRef/jabref,ayanai1/jabref,oscargus/jabref,tschechlovdev/jabref,obraliar/jabref,motokito/jabref,zellerdev/jabref,oscargus/jabref,motokito/jabref,Mr-DLib/jabref,bartsch-dev/jabref,zellerdev/jabref,mairdl/jabref,tobiasdiez/jabref,JabRef/jabref,mredaelli/jabref,ayanai1/jabref,Braunch/jabref,ayanai1/jabref,sauliusg/jabref,Braunch/jabref,grimes2/jabref,grimes2/jabref,Mr-DLib/jabref,bartsch-dev/jabref,ayanai1/jabref,mairdl/jabref,shitikanth/jabref,bartsch-dev/jabref,Siedlerchr/jabref,mairdl/jabref,jhshinn/jabref,sauliusg/jabref,tobiasdiez/jabref,obraliar/jabref,ayanai1/jabref,tobiasdiez/jabref,Braunch/jabref,shitikanth/jabref,obraliar/jabref,zellerdev/jabref,shitikanth/jabref,bartsch-dev/jabref,Mr-DLib/jabref,tschechlovdev/jabref,Mr-DLib/jabref,grimes2/jabref,grimes2/jabref,oscargus/jabref,oscargus/jabref,JabRef/jabref,obraliar/jabref,motokito/jabref,Mr-DLib/jabref,zellerdev/jabref,sauliusg/jabref,Braunch/jabref,mredaelli/jabref,jhshinn/jabref,JabRef/jabref,mredaelli/jabref,Braunch/jabref,mredaelli/jabref,zellerdev/jabref,motokito/jabref,bartsch-dev/jabref,jhshinn/jabref,Siedlerchr/jabref,shitikanth/jabref,tschechlovdev/jabref,mairdl/jabref,mredaelli/jabref,tschechlovdev/jabref,shitikanth/jabref,obraliar/jabref,jhshinn/jabref,Siedlerchr/jabref,sauliusg/jabref,jhshinn/jabref,motokito/jabref,grimes2/jabref,oscargus/jabref