feat(collapse): added animation, toggle\hide\show methods made public (closes #348, fixes #287)
feat(collapse): added animation, toggle\hide\show methods made public (closes #348, fixes #287)

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