Update `babel-core` to `v6.7.2`
Update `babel-core` to `v6.7.2`

Close h5bp/html5-boilerplate#1796
Close h5bp/html5-boilerplate#1800
Close h5bp/html5-boilerplate#1802
Close h5bp/html5-boilerplate#1805
Close h5bp/html5-boilerplate#1808

Mounika15/html5-boilerplate,ankurgyani/html5boilerplate,Deepakzz/assignment1,AllisonM114/IS-218-Homework1,RanikaR/Assignment_1,h5bp/html5-boilerplate,sjp46/assignment3,rp528/html5-boilerplate,rprouse/html5-boilerplate,wvspeters/boilandtrouble,vkhorozian/fivePage,ars66/boilerplate,parepallysvp/clone1,gagiksargsyan/html5-boilerplate,Upmacis-Andrejs/2nd_demo_project_for_SEM.lv_Front-end,Gia636/clone,ankurgyani/html5boilerplate,taupecat/career-day,larmour/html-files,ryandnieves/project1,StalynArroyo/Assignment1,Upmacis-Andrejs/2nd_demo_project_for_SEM.lv_Front-end,mtf22/Assignment-1,Upmacis-Andrejs/untrips_Front-end,sap64/mynewrepo,rb496/html5-boilerplate,hpaghdal/assignment3,parepallysvp/clone1,MeilinLu/html5-boilerplate,Gia636/clone,AllisonM114/Final-Project,pankaj-tulaskar/wsda1,AllisonM114/IS-218-Homework1,rp528/html5-boilerplate,pankaj-tulaskar/wsda1,sumitrawat1/assignment1,AllisonM114/Is117GitWebsite,sap64/mynewrepo,MaitreyPatel/assigment1,Krisrinidhi/html5-boilerplate,diehard226/is117website,ryandnieves/improve,Upmacis-Andrejs/1st_demo_project_for_SEM.lv_Front-end,h5bp/html5-boilerplate,sjp46/timeline,Upmacis-Andrejs/12guru_Front-end,RanesJan/is218,sumitrawat1/assignment1,Krisrinidhi/html5-boilerplate,Terminocity/terminocity.github.io,janina2489/as1,ryandnieves/project1,AllisonM114/Final-Project,larmour/html-files,RanesJan/is218,BlazerR/Assignment1,beera421/myfirstrepo,rb496/html5-boilerplate,RanesJan/is218,wvspeters/boilandtrouble,sumathi89/html5-boilerplate,diehard226/is117website,roblarsen/html5-boilerplate,diehard226/is117finalproject,gast499/IS218_assignment1,diehard226/is117html5,swarrier16/boilerCommits,MeilinLu/html5-boilerplate,JohnnyWalkerDesign/html5-boilerplate,pba3/htmlboilerplate,geosu93/HelloWorld1,ebramk/IS218,sjp46/assignment3,Terminocity/terminocity.github.io,soumitad/html5_boilerplate,hpaghdal/assignment3,Upmacis-Andrejs/12guru_Front-end,domingle/my-website,fizzvr/html5-boilerplate,pba3/htmlboilerplate,soumitad/html5_boilerplate,snehaltandel/newboilerplate,gagiksargsyan/html5-boilerplate-less,jeffreysantos/is218,diehard226/is117html5,bchok/boilerplate4,ronakt307/html5boilerplate,MaitreyPatel/assigment1,snehaltandel/newboilerplate,SabaNabeel/HTML-Boilerplate,katy-400/Boiler,ronakt307/html5boilerplate,deftcat/Fei_Boilerplate,gast499/IS218_assignment1,JohnnyWalkerDesign/html5-boilerplate,majaradichevich/majaradichevich.github.io,balakumarhs/Balakumar,katy-400/Boiler,balakumarhs/Balakumar,ebramk/IS218,deftcat/Fei_Boilerplate,majaradichevich/majaradichevich.github.io,rprouse/html5-boilerplate,taupecat/career-day,BlazerR/Assignment1,Kevaughn/Assignment1,Deepakzz/assignment1,roblarsen/html5-boilerplate,diehard226/is117finalproject,MourviTrivedi/boilerplate,StalynArroyo/Assignment1,sg772/Assignment1,larmour/html-files,sumathi89/html5-boilerplate,gagiksargsyan/html5-boilerplate-less,fizzvr/html5-boilerplate,RanikaR/Assignment_1,AllisonM114/Is117GitWebsite,ars66/boilerplate,nn265/niceproject,sg772/Assignment1,MourviTrivedi/boilerplate,Kevaughn/Assignment1,beera421/myfirstrepo,vkhorozian/fivePage,nn265/niceproject,jeffreysantos/is218,domingle/my-website,janina2489/as1,geosu93/HelloWorld1,Upmacis-Andrejs/untrips_Front-end,Upmacis-Andrejs/1st_demo_project_for_SEM.lv_Front-end,SabaNabeel/HTML-Boilerplate,byog/html5-boilerplate,byog/html5-boilerplate,gagiksargsyan/html5-boilerplate,swarrier16/boilerCommits,ryandnieves/improve,bchok/boilerplate4,mtf22/Assignment-1,Mounika15/html5-boilerplate,sjp46/timeline