Update .travis.yml
Update .travis.yml

Check that the bare-arm, stmhal and unix-cpy ports at least remain compilable, even if we can only actually run tests against the unix port.
adafruit/micropython,martinribelotta/micropython,dxxb/micropython,adafruit/micropython,pozetroninc/micropython,Vogtinator/micropython,AriZuu/micropython,infinnovation/micropython,mhoffma/micropython,dmazzella/micropython,feilongfl/micropython,HenrikSolver/micropython,mgyenik/micropython,ernesto-g/micropython,ceramos/micropython,infinnovation/micropython,dxxb/micropython,pramasoul/micropython,adamkh/micropython,mhoffma/micropython,aethaniel/micropython,tobbad/micropython,mgyenik/micropython,matthewelse/micropython,dinau/micropython,MrSurly/micropython-esp32,matthewelse/micropython,neilh10/micropython,tobbad/micropython,jmarcelino/pycom-micropython,aitjcize/micropython,SungEun-Steve-Kim/test-mp,ericsnowcurrently/micropython,adafruit/micropython,galenhz/micropython,mpalomer/micropython,blazewicz/micropython,alex-robbins/micropython,rubencabrera/micropython,EcmaXp/micropython,ruffy91/micropython,ceramos/micropython,mhoffma/micropython,infinnovation/micropython,tuc-osg/micropython,noahchense/micropython,SungEun-Steve-Kim/test-mp,henriknelson/micropython,mpalomer/micropython,ericsnowcurrently/micropython,MrSurly/micropython-esp32,jmarcelino/pycom-micropython,noahchense/micropython,ChuckM/micropython,EcmaXp/micropython,heisewangluo/micropython,alex-robbins/micropython,paul-xxx/micropython,cwyark/micropython,pozetroninc/micropython,chrisdearman/micropython,bvernoux/micropython,tobbad/micropython,praemdonck/micropython,drrk/micropython,ahotam/micropython,galenhz/micropython,blmorris/micropython,mgyenik/micropython,firstval/micropython,selste/micropython,galenhz/micropython,neilh10/micropython,tralamazza/micropython,praemdonck/micropython,matthewelse/micropython,misterdanb/micropython,lbattraw/micropython,jimkmc/micropython,selste/micropython,stonegithubs/micropython,toolmacher/micropython,slzatz/micropython,matthewelse/micropython,xyb/micropython,hiway/micropython,mianos/micropython,noahwilliamsson/micropython,cloudformdesign/micropython,blazewicz/micropython,tdautc19841202/micropython,xyb/micropython,cwyark/micropython,MrSurly/micropython,tdautc19841202/micropython,skybird6672/micropython,praemdonck/micropython,hiway/micropython,suda/micropython,utopiaprince/micropython,vriera/micropython,tdautc19841202/micropython,tdautc19841202/micropython,tuc-osg/micropython,warner83/micropython,SHA2017-badge/micropython-esp32,cwyark/micropython,ChuckM/micropython,torwag/micropython,drrk/micropython,adamkh/micropython,Peetz0r/micropython-esp32,pfalcon/micropython,tuc-osg/micropython,jimkmc/micropython,jimkmc/micropython,micropython/micropython-esp32,aitjcize/micropython,henriknelson/micropython,ahotam/micropython,pfalcon/micropython,puuu/micropython,turbinenreiter/micropython,feilongfl/micropython,ericsnowcurrently/micropython,aitjcize/micropython,noahchense/micropython,ceramos/micropython,tuc-osg/micropython,ruffy91/micropython,alex-march/micropython,TDAbboud/micropython,cnoviello/micropython,henriknelson/micropython,danicampora/micropython,martinribelotta/micropython,supergis/micropython,emfcamp/micropython,redbear/micropython,aethaniel/micropython,SHA2017-badge/micropython-esp32,MrSurly/micropython-esp32,pfalcon/micropython,hosaka/micropython,Timmenem/micropython,jmarcelino/pycom-micropython,skybird6672/micropython,galenhz/micropython,martinribelotta/micropython,cwyark/micropython,ruffy91/micropython,trezor/micropython,adafruit/circuitpython,selste/micropython,dxxb/micropython,ruffy91/micropython,warner83/micropython,emfcamp/micropython,slzatz/micropython,jlillest/micropython,mianos/micropython,adafruit/circuitpython,emfcamp/micropython,PappaPeppar/micropython,torwag/micropython,EcmaXp/micropython,matthewelse/micropython,rubencabrera/micropython,tuc-osg/micropython,SungEun-Steve-Kim/test-mp,tobbad/micropython,toolmacher/micropython,jimkmc/micropython,bvernoux/micropython,TDAbboud/micropython,ganshun666/micropython,PappaPeppar/micropython,mgyenik/micropython,vitiral/micropython,martinribelotta/micropython,slzatz/micropython,torwag/micropython,ruffy91/micropython,supergis/micropython,emfcamp/micropython,ChuckM/micropython,vitiral/micropython,adafruit/circuitpython,skybird6672/micropython,cwyark/micropython,Vogtinator/micropython,redbear/micropython,cnoviello/micropython,adafruit/circuitpython,dmazzella/micropython,blmorris/micropython,lbattraw/micropython,alex-march/micropython,jimkmc/micropython,HenrikSolver/micropython,stonegithubs/micropython,blmorris/micropython,TDAbboud/micropython,xuxiaoxin/micropython,toolmacher/micropython,trezor/micropython,vitiral/micropython,oopy/micropython,cnoviello/micropython,bvernoux/micropython,vitiral/micropython,deshipu/micropython,oopy/micropython,praemdonck/micropython,dmazzella/micropython,aethaniel/micropython,MrSurly/micropython,micropython/micropython-esp32,ericsnowcurrently/micropython,tdautc19841202/micropython,KISSMonX/micropython,aethaniel/micropython,Peetz0r/micropython-esp32,heisewangluo/micropython,warner83/micropython,galenhz/micropython,drrk/micropython,misterdanb/micropython,suda/micropython,skybird6672/micropython,xuxiaoxin/micropython,danicampora/micropython,blmorris/micropython,mianos/micropython,deshipu/micropython,MrSurly/micropython-esp32,oopy/micropython,omtinez/micropython,kerneltask/micropython,SungEun-Steve-Kim/test-mp,misterdanb/micropython,tralamazza/micropython,adamkh/micropython,MrSurly/micropython,pramasoul/micropython,kerneltask/micropython,kostyll/micropython,oopy/micropython,feilongfl/micropython,KISSMonX/micropython,kostyll/micropython,slzatz/micropython,xyb/micropython,drrk/micropython,supergis/micropython,hiway/micropython,pramasoul/micropython,alex-robbins/micropython,deshipu/micropython,turbinenreiter/micropython,ernesto-g/micropython,TDAbboud/micropython,SHA2017-badge/micropython-esp32,swegener/micropython,hosaka/micropython,vitiral/micropython,stonegithubs/micropython,mhoffma/micropython,ryannathans/micropython,jlillest/micropython,kerneltask/micropython,adamkh/micropython,kostyll/micropython,suda/micropython,lowRISC/micropython,MrSurly/micropython-esp32,rubencabrera/micropython,TDAbboud/micropython,emfcamp/micropython,AriZuu/micropython,mianos/micropython,omtinez/micropython,mpalomer/micropython,rubencabrera/micropython,neilh10/micropython,utopiaprince/micropython,swegener/micropython,ceramos/micropython,omtinez/micropython,xuxiaoxin/micropython,swegener/micropython,deshipu/micropython,feilongfl/micropython,adafruit/micropython,paul-xxx/micropython,trezor/micropython,kerneltask/micropython,omtinez/micropython,dhylands/micropython,feilongfl/micropython,ernesto-g/micropython,Timmenem/micropython,pfalcon/micropython,swegener/micropython,stonegithubs/micropython,danicampora/micropython,trezor/micropython,redbear/micropython,infinnovation/micropython,bvernoux/micropython,paul-xxx/micropython,misterdanb/micropython,paul-xxx/micropython,PappaPeppar/micropython,pozetroninc/micropython,micropython/micropython-esp32,noahwilliamsson/micropython,neilh10/micropython,aitjcize/micropython,deshipu/micropython,orionrobots/micropython,dmazzella/micropython,orionrobots/micropython,KISSMonX/micropython,puuu/micropython,noahchense/micropython,noahchense/micropython,puuu/micropython,xhat/micropython,MrSurly/micropython,alex-march/micropython,henriknelson/micropython,hiway/micropython,noahwilliamsson/micropython,blazewicz/micropython,jlillest/micropython,pfalcon/micropython,vriera/micropython,toolmacher/micropython,Vogtinator/micropython,puuu/micropython,mianos/micropython,aethaniel/micropython,firstval/micropython,chrisdearman/micropython,drrk/micropython,adafruit/circuitpython,xhat/micropython,redbear/micropython,cloudformdesign/micropython,xyb/micropython,ChuckM/micropython,cnoviello/micropython,ernesto-g/micropython,AriZuu/micropython,stonegithubs/micropython,noahwilliamsson/micropython,utopiaprince/micropython,SHA2017-badge/micropython-esp32,warner83/micropython,ryannathans/micropython,turbinenreiter/micropython,utopiaprince/micropython,xhat/micropython,ahotam/micropython,dhylands/micropython,vriera/micropython,dxxb/micropython,adafruit/circuitpython,slzatz/micropython,xuxiaoxin/micropython,MrSurly/micropython,adamkh/micropython,mgyenik/micropython,kostyll/micropython,cnoviello/micropython,ericsnowcurrently/micropython,toolmacher/micropython,hiway/micropython,turbinenreiter/micropython,dhylands/micropython,ernesto-g/micropython,ceramos/micropython,firstval/micropython,heisewangluo/micropython,suda/micropython,alex-robbins/micropython,AriZuu/micropython,PappaPeppar/micropython,hosaka/micropython,ahotam/micropython,kerneltask/micropython,HenrikSolver/micropython,turbinenreiter/micropython,jlillest/micropython,henriknelson/micropython,matthewelse/micropython,ganshun666/micropython,jmarcelino/pycom-micropython,martinribelotta/micropython,misterdanb/micropython,omtinez/micropython,lowRISC/micropython,ganshun666/micropython,alex-robbins/micropython,torwag/micropython,Vogtinator/micropython,ChuckM/micropython,tobbad/micropython,vriera/micropython,swegener/micropython,xhat/micropython,paul-xxx/micropython,jlillest/micropython,firstval/micropython,pozetroninc/micropython,chrisdearman/micropython,kostyll/micropython,utopiaprince/micropython,selste/micropython,hosaka/micropython,rubencabrera/micropython,heisewangluo/micropython,dhylands/micropython,dinau/micropython,EcmaXp/micropython,firstval/micropython,redbear/micropython,danicampora/micropython,vriera/micropython,orionrobots/micropython,trezor/micropython,pozetroninc/micropython,methoxid/micropystat,Peetz0r/micropython-esp32,blmorris/micropython,tralamazza/micropython,AriZuu/micropython,cloudformdesign/micropython,lowRISC/micropython,Peetz0r/micropython-esp32,HenrikSolver/micropython,supergis/micropython,dinau/micropython,HenrikSolver/micropython,lowRISC/micropython,SungEun-Steve-Kim/test-mp,ganshun666/micropython,neilh10/micropython,ahotam/micropython,ganshun666/micropython,bvernoux/micropython,blazewicz/micropython,dxxb/micropython,mpalomer/micropython,chrisdearman/micropython,dinau/micropython,orionrobots/micropython,cloudformdesign/micropython,noahwilliamsson/micropython,SHA2017-badge/micropython-esp32,methoxid/micropystat,orionrobots/micropython,mhoffma/micropython,lbattraw/micropython,alex-march/micropython,KISSMonX/micropython,lbattraw/micropython,dinau/micropython,PappaPeppar/micropython,lowRISC/micropython,methoxid/micropystat,lbattraw/micropython,pramasoul/micropython,ryannathans/micropython,xuxiaoxin/micropython,xyb/micropython,mpalomer/micropython,selste/micropython,ryannathans/micropython,methoxid/micropystat,torwag/micropython,alex-march/micropython,suda/micropython,puuu/micropython,EcmaXp/micropython,heisewangluo/micropython,Peetz0r/micropython-esp32,praemdonck/micropython,cloudformdesign/micropython,supergis/micropython,danicampora/micropython,Timmenem/micropython,oopy/micropython,Timmenem/micropython,micropython/micropython-esp32,hosaka/micropython,warner83/micropython,Vogtinator/micropython,dhylands/micropython,xhat/micropython,chrisdearman/micropython,KISSMonX/micropython,infinnovation/micropython,adafruit/micropython,Timmenem/micropython,tralamazza/micropython,skybird6672/micropython,jmarcelino/pycom-micropython,pramasoul/micropython,micropython/micropython-esp32,methoxid/micropystat,blazewicz/micropython,ryannathans/micropython