Update bower
To update bower one simply has to...
npm i -g bower
where:
iis for install andgis for global
output like:
C:\Users\UserName\AppData\Roaming\npm\bower -> C:\Users\UserName\AppData\Roaming\npm\node_modules\bower\bin\bower
C:\Users\UserName\AppData\Roaming\npm
+-- bower@1.8.0