added test info & NPM/Bower to readme
added test info & NPM/Bower to readme

nverba/pikaday-angular,AndyOGo/pikaday-angular,Nekle/pikaday-angular,AndyOGo/pikaday-angular,Nekle/pikaday-angular,mbhuvaneswaran/pikaday-angular,mbhuvaneswaran/pikaday-angular,marcin-wosinek/pikaday-angular,marcin-wosinek/pikaday-angular