Feature Request: support @ inside single-file components

[aymericbouzy]

Although #4 suggests a fix to support '@' syntax inside regular .js files, this doesn't seem to work inside .vue files.

Would a PR be considered?

[aymericbouzy]

Update: the issue is in fact to include the .vue file extension in paths :

- import Foo from './Foo';
+ import Foo from './Foo.vue';

[aymericbouzy]

vuejs/vetur#423 (comment)