chore(package): update phantomjs-prebuilt to version 2.1.6
chore(package): update phantomjs-prebuilt to version 2.1.6

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erodriguezh/ngx-bootstrap,imribarr-compit/ng2-bootstrap,olivierceulemans/ng2-bootstrap,valor-software/ngx-bootstrap,valor-software/ngx-bootstrap,valor-software/ngx-bootstrap,Betrozov/ng2-bootstrap,BojanKogoj/ng2-bootstrap,felixkubli/ng2-bootstrap,BojanKogoj/ng2-bootstrap,macroorganizm/ng2-bootstrap,sublime392/ng2-bootstrap,imribarr-compit/ng2-bootstrap,imribarr-compit/ng2-bootstrap,olivierceulemans/ng2-bootstrap,JohanSmolders/ng2-bootstrap,felixkubli/ng2-bootstrap,buchslava/angular2-bootstrap,valor-software/ng2-bootstrap,Le0Michine/ng2-bootstrap,JohanSmolders/ng2-bootstrap,IlyaSurmay/ngx-bootstrap-versioning,valor-software/ng2-bootstrap,IlyaSurmay/ngx-bootstrap-versioning,Betrozov/ng2-bootstrap,Betrozov/ng2-bootstrap,sublime392/ng2-bootstrap,macroorganizm/ng2-bootstrap,buchslava/angular2-bootstrap,olivierceulemans/ng2-bootstrap,macroorganizm/ng2-bootstrap,felixkubli/ng2-bootstrap,sublime392/ng2-bootstrap,buchslava/angular2-bootstrap,BojanKogoj/ng2-bootstrap,JohanSmolders/ng2-bootstrap,valor-software/ngx-bootstrap,Le0Michine/ng2-bootstrap