fix(dropdown): fixed auto close input behavior fixes #1840
fix(dropdown): fixed auto close input behavior
fixes #1840

valor-software/ngx-bootstrap,Le0Michine/ng2-bootstrap,valor-software/ng2-bootstrap,valor-software/ng2-bootstrap,Le0Michine/ng2-bootstrap,erodriguezh/ngx-bootstrap,valor-software/ngx-bootstrap,valor-software/ngx-bootstrap,valor-software/ngx-bootstrap