Make template compilation errors handling more abstract

[vladfaust]

vueify/lib/template-compiler.js

Lines 8 to 11 in 8d3159f

	compiled.errors.forEach(function (msg) {
	console.error('\n' + chalk.red(msg) + '\n')
	})
	throw new Error('Vue template compilation failed')

The only way to see an exact Vue-specific template compilation error (e.g. Component template should contain exactly one root element. If you are using v-if on multiple elements, use v-else-if to chain them instead.) is to look into the terminal.

It would be more convenient to include these errors into Error itself, so, for example, bumo could render it.