fix vue-init fail from gitlab in Windows OS

[winnieBear]

the path can NOT contain : in Windows OS, which result in failure of initialization by vue-init -c gitlab:gitlab.host:user/repo project-name in Windows OS. when downloadAndGenerate, the tmp path name may look like C:\Users\username\.vue-templates\gitlab:githost:repo-name, the character : in path lead git clone fail in Window OS.

[kospot]

@winnieBear Hi, when i use the http to clone package, I found the symbol ':' is can't be in the file name( Window OS)
temp should be this
var tmp = path.join(home, '.vue-templates', template.replace(/[\/|:]/g, '-'))

[yyx990803]

Closing as this has been included in #565, thanks.