mag: Run jshint on html changes.
mag: Run jshint on html changes.

Run jshint on *.html file changes.

Since a lot of your javascript lives in html files with polymer this is
a pretty decent thing to do. It also prevents the flood of jshint messages whenyou all of a sudden change a .js file :warning: (Closes #307)

baberthal/polymer-starter-kit,shawnhermans/polymer-starter-kit,markovuksanovic/polymer-starter-kit,alexpaluzzi/polymer-starter-kit,alexpaluzzi/polymer-starter-kit,robdodson/polymer-starter-kit,shingo-kumagai/polymer-starter-kit,patilharshali/polymer-starter-kit,bird1235456/polymer-starter-kit,m4h4n/polymer-starter-kit,plusCubed/pluscubed-site,grebett/polymer-starter-kit,anusornc/polymer-starter-kit,gianluka79/First,paul-jean/polymer-starter-kit,egohub/appdesign,gianluka79/First,WestchesterPublicLibrary/WPLreports,asternux/polymer-starter-kit,bdnorg/tmi,anthonybrown/polymer-starter-kit,gick/mobile-polymer-starter-2,timeu/polymer-starter-kit,jeffposnick/polymer-starter-kit,mtusk/polymer-starter-kit,lordoftheflies/mlm-portal,stephenzsy/charon-frontend,elenadatsiuk/tinkersolomid,dennisg/luminis-colleagues,abdonrd/polymer-starter-kit,vl4dt/polymer-starter-kit,jvkops/polymer-starter-kit,LM450N/polymer-starter-kit,semafloor/semafloor-test-alpha,yi-jiayu/mahjong-calculator-v2,fousheezy/ncdc-events,datalink747/polymer-starter-kit,Jelle-imitto/tools-polymer,bird1235456/polymer-starter-kit,didrocks/site-julie,anusornc/polymer-starter-kit,kristianmandrup/polymer-starter-kit,Jelle-imitto/tools-polymer,proplanr/polymer-starter-kit,Jelle-imitto/tools-polymer,SB-Technology-Holdings-International/Water,stefanoantonel/brainpower,WestchesterPublicLibrary/WPLreports,jakemac53/polymer-starter-kit,anthonybrown/polymer-starter-kit,HIROSN/polymer-starter-kit,WestchesterPublicLibrary/WPLreports,stefanoantonel/ecofit,ianholing/geowall-project,hbx5555/polymer-starter-kit,michaetto/f16,alexpaluzzi/polymer-starter-kit,hwangc/polymer-starter-kit,victorgb6/id-questionary,markovuksanovic/polymer-starter-kit,eafelix/polymer-starter-kit,shingo-kumagai/polymer-starter-kit,pedrogasg/polypdu,LM450N/polymer-starter-kit,hocine-h/polymer-starter-kit,soonick/polymer-starter-kit,felixzapata/polymer-starter-kit,klarkc/polymer-loopback-starter-kit,Sykkro/penny-web,Negashev/i-kosmetolog,didrocks/polymer-starter-kit,taranjeetsapra/polymer-starter-kit,VandeurenGlenn/web-import,mikaelharsjo/polymer-starter-kit,hourliert/polymer-starter-kit,FaellCarvalho/Geo-Location,StartPolymer/polymer-starter-kit-plus,didrocks/polymer-starter-kit,RoyKoh/Project-3,bright-sparks/polymer-starter-kit,paul-jean/foo-bar-element,didrocks/site-julie,lordoftheflies/mlm-portal,GNURub/polymer-starter-kit,jamesthechamp/polymer-starter-kit,FaellCarvalho/Geo-Location,plusCubed/pluscubed-site,taranjeetsapra/polymer-starter-kit,tecla5/site,natabbotts/blogs.org.uk,gianluka79/First,paul-jean/polymer-starter-kit,TheFinestArtist/HandbellChoir-Web,JnJSW/dttdata,proplanr/polymer-starter-kit,paul-jean/foo-bar-element,stephenzsy/charon-frontend,Negashev/negash.ru,SB-Technology-Holdings-International/Water,semafloor/semafloor-test-alpha,didrocks/site-julie,camargoanderso/polymer-starter-kit,Negashev/negash.ru,SB-Technology-Holdings-International/WateringWebClient,noahlaux/polymer-starter-kit,RoyKoh/Project-3,sebs/cat-toy,StatelessCat/psk-html-importer,eafelix/polymer-starter-kit,victorgb6/id-questionary,elenadatsiuk/tinkersolomid,Sykkro/penny-web,lordoftheflies/mlm-portal,jimivdw/polymer-starter-kit,gick/reveries-project,m4h4n/polymer-starter-kit,timeu/polymer-starter-kit,TheFinestArtist/HandbellChoir-Web,hbx5555/polymer-starter-kit,hwangc/polymer-starter-kit,kristianmandrup/polymer-starter-kit-plus,baberthal/polymer-starter-kit,klarkc/polymer-loopback-starter-kit,vl4dt/polymer-starter-kit,natabbotts/blogs.org.uk,proplanr/polymer-starter-kit,gertcuykens/polymer-starter-kit,stefanoantonel/ecofit,trendystore/store,StartPolymer/polymer-starter-kit-plus,andrefuller/PolymerTrailerViewer,Nzaga/polymer-starter-kit,SB-Technology-Holdings-International/Water,bdnorg/tmi,yi-jiayu/mahjong-calculator-v2,SB-Technology-Holdings-International/Water,RoyKoh/Project-3,noahlaux/polymer-starter-kit,hocine-h/polymer-starter-kit,kristianmandrup/polymer-starter-kit-plus,grebett/polymer-starter-kit,1001genomes/admixture-map,FaellCarvalho/Geo-Location,datalink747/polymer-starter-kit,hliyan/polymer-starter-kit,SB-Technology-Holdings-International/WateringWebClient,fousheezy/ncdc-events,mtusk/polymer-starter-kit,bright-sparks/polymer-starter-kit,JnJSW/dttdata,soonick/polymer-starter-kit,didrocks/site-julie,Jelle-imitto/tools-polymer,trendystore/store,sebs/cat-toy,gick/mobile-polymer-starter-2,Negashev/i-kosmetolog,1001genomes/admixture-map,stefanoantonel/ecofit,jeffposnick/polymer-starter-kit,SB-Technology-Holdings-International/WateringWebClient,Jelle-imitto/tools-polymer,camargoanderso/polymer-starter-kit,paul-jean/polymer-starter-kit,jdavidagudelo/polymerstarter,stefanoantonel/brainpower,SB-Technology-Holdings-International/WateringWebClient,andrefuller/PolymerTrailerViewer,trendystore/store,felixzapata/polymer-starter-kit,egohub/appdesign,victorgb6/id-questionary,Ex-ante-Labs/shopper.ninja,gick/reveries-project,semafloor/semafloor-test-alpha,gick/mobile-polymer-starter-2,gertcuykens/polymer-starter-kit,Ex-ante-Labs/shopper.ninja,abdonrd/polymer-starter-kit,andrefuller/PolymerTrailerViewer,hliyan/polymer-starter-kit,dennisg/luminis-colleagues,patilharshali/polymer-starter-kit,Ex-ante-Labs/pivot-ahead,Sykkro/penny-web,StatelessCat/psk-html-importer,SB-Technology-Holdings-International/Water,shawnhermans/polymer-starter-kit,VandeurenGlenn/web-import,Serious-Rage/poligomy,LM450N/polymer-starter-kit,klarkc/polymer-loopback-starter-kit,tecla5/site,flaiker/polymer-starter-kit,flaiker/polymer-starter-kit,ragingwind/polymer-starter-kit,markovuksanovic/polymer-starter-kit,gertcuykens/polymer-starter-kit,asternux/polymer-starter-kit,Nzaga/polymer-starter-kit,ragingwind/polymer-starter-kit,ragingwind/polymer-starter-kit,Serious-Rage/poligomy,Negashev/negash.ru,StartPolymer/polymer-starter-kit,jamesthechamp/polymer-starter-kit,gick/reveries-project,WestchesterPublicLibrary/WPLreports,mikaelharsjo/polymer-starter-kit,pedrogasg/polypdu,michaetto/f16,Negashev/i-kosmetolog,hourliert/polymer-starter-kit,JnJSW/dttdata,felixzapata/polymer-starter-kit,grebett/polymer-starter-kit,HIROSN/polymer-starter-kit,jimivdw/polymer-starter-kit,Serious-Rage/poligomy,GNURub/polymer-starter-kit,jvkops/polymer-starter-kit,stephenzsy/charon-frontend,michaetto/f16,robdodson/polymer-starter-kit,kristianmandrup/polymer-starter-kit,jdavidagudelo/polymerstarter,jakemac53/polymer-starter-kit,ianholing/geowall-project,Ex-ante-Labs/pivot-ahead,StartPolymer/polymer-starter-kit