Replace ImportBatchSpecifer with ImportDefaultSpecifier & ImportNamespaceSpecifier and replace ExportDeclaration with ExportNamedDeclaration and ExportDefaultDeclaration
Replace ImportBatchSpecifer with ImportDefaultSpecifier & ImportNamespaceSpecifier and replace ExportDeclaration with ExportNamedDeclaration and ExportDefaultDeclaration

[closes #230]
btmills/acorn,TimothyGu/acorn,MarcelGerber/acorn,mysticatea/acorn,Rich-Harris/acorn,Rich-Harris/acorn,gratex/acorn,MarcelGerber/acorn,ajaxorg/acorn,ternjs/acorn,gratex/acorn,ajaxorg/acorn,xiemaisi/acorn,Rich-Harris/acorn,ajaxorg/acorn,mathiasbynens/acorn,marijnh/acorn,mysticatea/acorn,MarcelGerber/acorn,xiemaisi/acorn,mysticatea/acorn,TimothyGu/acorn,xiemaisi/acorn,btmills/acorn,btmills/acorn,happibum/acorn,marijnh/acorn,mathiasbynens/acorn,ternjs/acorn,mathiasbynens/acorn,ternjs/acorn,gratex/acorn,marijnh/acorn,happibum/acorn,happibum/acorn,TimothyGu/acorn