fix(button): adds a safe disabled-check for ripples
fix(button): adds a safe disabled-check for ripples

Closes #1029.

mohislm/material,zhhb/material,tolysz/material,vertazzar/material,gkalpak/material,taranjeetsapra/material,wanmifam/material,miguelcobain/material,nkoterba/material,n1vlac/material,abhijitsinha89/material,clshortfuse/material,jensenbox/material,DevVersion/material,RebootJeff/material,dlochrie/material,Zagorakiss/material-1,Jeremy017/material,quietshu/material,franzsilva/material,NickBolles/material,kamilkisiela/material,tolysz/material,franzsilva/material,kwypchlo/material,Benew/material,miguelcobain/material,quietshu/material,izeau/material,RebootJeff/material,masterpowers/material,ilovezy/material,goodylabs/material,arush/material,armst0910/material,daniel-nagy/material,jeffbcross/material,loic/material,deerawan/material,bOOm-X/material,acoreyj/material,n1vlac/material,stephen-james/material,onumossn/material,vurt/material,gmoothart/material,java02014/material-1,abhijitsinha89/material,gabimanea/material,yangjae/material,rolandoldengarm/material,sscovil/material,sscovil/material,ebulay/material,jeremymwells/material,mightyselva/material,marekmicek/material,1012/material,udhayam/material,SagarNaliyapara/material,miladhamzelou/material,paulflo150/material,nkoterba/material,hodeyp/material,kwypchlo/material,iksose/material,keshavos/material,programmist/material,sovanna/material,marduke182/material,angular/material,willgum/material_03,mlabieniec/material,SagarNaliyapara/material,Benew/material,uistyleguide/uistyleguide.github.io,mobinni/material,johanvo18/material,shyndman/material,jelbourn/material,dalong123/material,marpontes/material,asonni/material,miaotmac/material,theZimmee/angular-material,mightyselva/material,Arteaga2k/material,udhayam/material,mikol/angular-material,sscovil/material,j3ski/material,willgum/material_03,yangjae/material,hiteshsuthar/material,mattiLeBlanc/material,udhayam/material,daniel-nagy/material,sovanna/material,pwistbac/material,Benew/material,keshavos/material,noamshemesh/material,mlabieniec/material,bluebirdtech/material,miladhamzelou/material,vanslly/material,miaotmac/material,huoxudong125/material,hesling/material,cdriscol/material,HipsterZipster/material,HarrisCorp/material,valery-barysok/material,veraksar/material,ilovett/material,xiexingen/material,loic/material,ilovett/material,gorcz/material,mikol/angular-material,jadjoubran/material,philipooo/material,wmehanna/material,Mexiswow/material,gkalpak/material,m0g/material,robteix/material,justingrayston/material,paulflo150/material,acoreyj/material,JsonChiu/material,JsonChiu/material,FrankMeyer/material,deerawan/material,angularjscl/material,zhhb/material,BurovAndrii/material,davidecavaliere/material,veraksar/material,taranjeetsapra/material,eloytoro/material,hodeyp/material,dkemper01/material,jmcabandara/material,ErinCoughlan/material,mobinni/material,Splaktar/material,Azzurrio/material,oostmeijer/material,1012/material,2947721120/angular-material,JayQuerido/material,hiteshsuthar/material,mprentic-harris/material,Jeremy017/material,2947721120/angular-material,oostmeijer/material,jensenbox/material,rassokhina/material,antoniosejas/material,noamshemesh/material,mprentic-harris/material,programmersujeet/material,matthewrfindley/material,HipsterZipster/material,Patrik-Lundqvist/material,marduke182/material,jadjoubran/material,Belicosus/material,2947721120/angular-material,nconrad/material,HarrisCorp/material,udhayam/material,yangjae/material,graingert/material,Frank3K/material,tolysz/material,xiexingen/material,johanvo18/material,vanslly/material,graingert/material,valery-barysok/material,garmoshka-mo/material,flowersinthesand/material,aanjna/material,hayloft/material,SagarNaliyapara/material,gmoothart/material,JackieWei/material,izeau/material,acoreyj/material,theZimmee/angular-material,p5150j/material,vurt/material,bjfletcher/material,rassokhina/material,oostmeijer/material,hiddestokvis/material,hodeyp/material,ByJC/material,HipsterZipster/material,Patrik-Lundqvist/material,hitesh97/material,un33k/material,FrankMeyer/material,SanderElias/material,JonFerrera/material,b-cuts/material,antoniosejas/material,programmersujeet/material,davidecavaliere/material,Frank3K/material,robteix/material,alfirin/material,valery-barysok/material,dlochrie/material,ilovezy/material,Teremok/material,wisavalite/material,Bryanschauerte/material,noamshemesh/material,Belicosus/material,shyndman/material,marekmicek/material,Bryanschauerte/material,zhhb/material,tarnas14/material,ashwathgovind/material,armst0910/material,arlowhite/material,gmoothart/material,robertmesserle/material,keshavos/material,kennethcachia/material,pan-long/material,DevVersion/material,sovanna/material,pan-long/material,miladhamzelou/material,dmitriz/material,gorcz/material,masterpowers/material,NickBolles/material,davidecavaliere/material,j3ski/material,Azzurrio/material,imjoeco/material,eloytoro/material,NickBolles/material,Todd-Werelius/material,b-cuts/material,calebegg/material,AladdinSonni/material,Patrik-Lundqvist/material,psaul3/material,andreialecu/material,mobinni/material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govind/material,welkinhealth/material,pijey/material,victorivens05/material,hitesh97/material,Androguide/material,keshavos/material,wisavalite/material,quietshu/material,ServiceManagementGroup/material,mightyselva/material,ServiceManagementGroup/material,clshortfuse/material,wanmifam/material,epelc/material,CarmenPopoviciu/material,arush/material,m0g/material,Verarxar/material,acoreyj/material,graingert/material,vertazzar/material,Benew/material,philipooo/material,garmoshka-mo/material,deerawan/material,Patrik-Lundqvist/material,matthewrfindley/material,robteix/material,wanmifam/material,garmoshka-mo/material,drrezeau/material,kamilkisiela/material,ServiceManagementGroup/material,Jeremy017/material,Frank3K/material,hannahhoward/material,miladhamzelou/material,DerekLouie/material,RebootJeff/material,kwypchlo/material,aikalima/material,ardas/material,aanjna/material,Drooids/material,rolandoldengarm/material,flowersinthesand/material,pijey/material,hiddestokvis/material,nkoterba/material,uistyleguide/uistyleguide.github.io,Arteaga2k/material,davidecavaliere/material,HarrisCorp/material,hannahhoward/material,iksose/material,veraksar/material,stephen-james/material,un33k/material,barryvdh/material,tolysz/material,ryancampbell/material,n1vlac/material,lukascivil/material,Zagorakiss/material-1,gabimanea/material,Antariano/material,JayQuerido/material,hannahhoward/material,ashwathgovind/material,amithub/Angular-Material-Web-Design,rolandoldengarm/material,abhijitsinha89/material,mohislm/material,onumossn/material,alfirin/material,BernhardRode/material,rassokhina/material,m0g/material,j3ski/material,Kielan/material,sandeeppatidar/material,b-cuts/material,un33k/material,hayloft/material,BurovAndrii/material,weebygames/material,SamDLT/material,Bhavinshah5111/material,ardas/material,flowersinthesand/material,isaaclyman/material,graingert/material,alfirin/material,ilovett/material,EladBezalel/material,jeremymwells/material,victorivens05/material,johanvo18/material,kwypchlo/material,ardas/material,Zagorakiss/material-1,listenlee/material,mobinni/material,JackieWei/material,colinskow/material,BernhardRode/material,ashwathgovind/material,marekmicek/material,imjoeco/material,arlowhite/material,jeremymwells/material,Sravyaksr/material,hitesh97/material,DevVersion/material,andreialecu/material,programmist/material,drrezeau/material,victorivens05/material,amithub/Angular-Material-Web-Design,pwistbac/material,Sravyaksr/material,BurovAndrii/material,garmoshka-mo/material,ilovezy/material,huoxudong125/material,nantunes/material,Androguide/material,vertazzar/material,wmehanna/material,ByJC/material,tarnas14/material,arush/material,marduke182/material,sandeeppatidar/material,calebegg/material,hannahhoward/material,Todd-Werelius/material,izeau/material,Arteaga2k/material,mattiLeBlanc/material,kennethcachia/material,hitesh97/material,robertmesserle/material,CarmenPopoviciu/material,robertbaker/material,david-gang/material,Igosuki/material,goodylabs/material,JsonChiu/material,bendroid/material,mightyselva/material,hesling/material,arlowhite/material,cdriscol/material,masterpowers/material,rschmukler/material,uistyleguide/uistyleguide.github.io,victorivens05/material,2947721120/angular-material,psaul3/material,colinskow/material,dkemper01/material,Sravyaksr/material,barryvdh/material,welkinhealth/material,nantunes/material,Androguide/material,Belicosus/material,java02014/material-1,david-gang/material,shyndman/material,HarrisCorp/material,valery-barysok/material,hiddestokvis/material,paulflo150/material,dmitriz/material,b-cuts/material,david-gang/material,deerawan/material,rschmukler/material,iksose/material,ebulay/material,ilovett/material,wanmifam/material,EladBezalel/material,marpontes/material,psaul3/material,bendroid/material,mlabieniec/material,1012/material,crisbeto/material,bendroid/material,asonni/material,dreamoftrees/material,clshortfuse/material,brunoqc/material,ServiceManagementGroup/material,IRlyDontKnow/material,brian-lewis/material,NickBolles/material,robertmesserle/material,kamilkisiela/material,vanslly/material,daniel-nagy/material,dmitriz/material,franzsilva/material,AladdinSonni/material,Frank3K/material,Azzurrio/material,ebulay/material,57-Wolve/material,miaotmac/material,Verarxar/material,vurt/material,miguelcobain/material,jadjoubran/material,epelc/material,programmersujeet/material,Arteaga2k/material,weebygames/material,welkinhealth/material,aikalima/material,n1vlac/material,programmersujeet/material,mattiLeBlanc/material,weebygames/material,goodylabs/material,JackieWei/material,hiteshsuthar/material,goodylabs/material,nishant8BITS/material,stephen-james/material,angularjscl/material,amithub/Angular-Material-Web-Design,HipsterZipster/material,xale/material,daniel-nagy/material,robteix/material,Drooids/material,57-Wolve/material,nconrad/material,1012/material,p5150j/material,richtmat/material,noamshemesh/material,masterpowers/material,weiwei695/material,tarnas14/material,marpontes/material,angular/material,marduke182/material,Todd-Werelius/material,Azzurrio/material,Antariano/material,SamDLT/material,Teremok/material,elton0895/material,dlochrie/material,pijey/material,calebegg/material,Teremok/material,shyndman/material,dreamoftrees/material,aanjna/material,dreamoftrees/material,jensenbox/material,theZimmee/angular-material,jianwang195823/material,Kielan/material,andreialecu/material,armst0910/material,profoundry-us/material,svetlyak40wt/material,tarnas14/material,crisbeto/material,jianwang195823/material,FrankMeyer/material,bluebirdtech/material,nconrad/material,drrezeau/material,JackieWei/material,imjoeco/material