vertically center .form-group contents in inline forms
vertically center .form-group contents in inline forms

fixes broken inline form example mentioned in #21407

andresgalante/bootstrap,NCARB/bootstrap,NCARB/bootstrap,coliff/bootstrap,jipexu/bootstrap,peterblazejewicz/bootstrap,tibo66/bootstrap,yuyokk/bootstrap,bardiharborow/bootstrap,GerHobbelt/bootstrap,9-chirno/chirno,9-chirno/chirno,n054/bootstrap,tibo66/bootstrap,Lyricalz/bootstrap,IdanCo/bootstrap,nice-fungal/bootstrap,lemuelbarango/bootstrap,janseliger/bootstrap,seanwu99/bootstrap,TheFridayInstitute/bootstrap,johnajacob/bootstrap,tagliala/bootstrap,Lyricalz/bootstrap,igoynawamreh/bootstrap,copperdesign/bootstrap,yuyokk/bootstrap,joblocal/bootstrap,vsn4ik/bootstrap,igoynawamreh/bootstrap,edanbarak/bootstrap,n054/bootstrap,inway/bootstrap,NCARB/bootstrap,n054/bootstrap,bardiharborow/bootstrap,lemuelbarango/bootstrap,kvlsrg/bootstrap,zalog/bootstrap,kvlsrg/bootstrap,TheFridayInstitute/bootstrap,lemuelbarango/bootstrap,realcrowd/bootstrap,inway/bootstrap,NCARB/bootstrap,realcrowd/bootstrap,davethegr8/bootstrap,stanwmusic/bootstrap,Hemphill/bootstrap-docs,jipexu/bootstrap,realcrowd/bootstrap,TheFridayInstitute/bootstrap,JumpLinkNetwork/bootstrap-backward,realcrowd/bootstrap,davethegr8/bootstrap,twbs/bootstrap,hebbet/bootstrap,Scoutski/bootstrap,coliff/bootstrap,vsn4ik/bootstrap,n054/bootstrap,jipexu/bootstrap,davethegr8/bootstrap,JumpLinkNetwork/bootstrap-backward,twbs/bootstrap,seanwu99/bootstrap,stanwmusic/bootstrap,IdanCo/bootstrap,tjkohli/bootstrap,hebbet/bootstrap,kvlsrg/bootstrap,nice-fungal/bootstrap,edanbarak/bootstrap,9-chirno/chirno,xt0rted/bootstrap,copperdesign/bootstrap,zalog/bootstrap,m5o/bootstrap,Lyricalz/bootstrap,sealocal/bootstrap,afuno/bootstrap,xt0rted/bootstrap,Hemphill/bootstrap-docs,igoynawamreh/bootstrap,johnajacob/bootstrap,vsn4ik/bootstrap,lipis/bootstrap,hebbet/bootstrap,seanwu99/bootstrap,tibo66/bootstrap,m5o/bootstrap,copperdesign/bootstrap,vsn4ik/bootstrap,janseliger/bootstrap,Hemphill/bootstrap-docs,joblocal/bootstrap,TheFridayInstitute/bootstrap,sealocal/bootstrap,edanbarak/bootstrap,creativewebjp/bootstrap,fschumann1211/bootstrap,seanwu99/bootstrap,GerHobbelt/bootstrap,SweetProcess/bootstrap,sealocal/bootstrap,SweetProcess/bootstrap,andresgalante/bootstrap,IdanCo/bootstrap,bootstrapbrasil/bootstrap,afuno/bootstrap,andresgalante/bootstrap,supergibbs/bootstrap,janseliger/bootstrap,JumpLinkNetwork/bootstrap-backward,jipexu/bootstrap,peterblazejewicz/bootstrap,inway/bootstrap,zalog/bootstrap,johnajacob/bootstrap,Delagen/bootstrap,joblocal/bootstrap,janseliger/bootstrap,IdanCo/bootstrap,nice-fungal/bootstrap,hebbet/bootstrap,SweetProcess/bootstrap,Scoutski/bootstrap,Lyricalz/bootstrap,tjkohli/bootstrap,lipis/bootstrap,tagliala/bootstrap,tagliala/bootstrap,afuno/bootstrap,creativewebjp/bootstrap,Scoutski/bootstrap,SweetProcess/bootstrap,Hemphill/bootstrap-docs,bardiharborow/bootstrap,xt0rted/bootstrap,xt0rted/bootstrap,afuno/bootstrap,sealocal/bootstrap,yuyokk/bootstrap,peterblazejewicz/bootstrap,stanwmusic/bootstrap,creativewebjp/bootstrap,Delagen/bootstrap,bardiharborow/bootstrap,Scoutski/bootstrap,gijsbotje/bootstrap,slavanga/bootstrap,gijsbotje/bootstrap,slavanga/bootstrap,creativewebjp/bootstrap,slavanga/bootstrap,lemuelbarango/bootstrap,bootstrapbrasil/bootstrap,yuyokk/bootstrap,Delagen/bootstrap,tibo66/bootstrap,supergibbs/bootstrap,9-chirno/chirno,edanbarak/bootstrap,supergibbs/bootstrap,davethegr8/bootstrap,gijsbotje/bootstrap,joblocal/bootstrap,JumpLinkNetwork/bootstrap-backward,johnajacob/bootstrap,stanwmusic/bootstrap,supergibbs/bootstrap,copperdesign/bootstrap,andresgalante/bootstrap,slavanga/bootstrap,fschumann1211/bootstrap,fschumann1211/bootstrap,bootstrapbrasil/bootstrap,GerHobbelt/bootstrap,lipis/bootstrap,igoynawamreh/bootstrap,lipis/bootstrap,Delagen/bootstrap,gijsbotje/bootstrap,fschumann1211/bootstrap