Moving popup template to own file

Conflicts:
	src/autoreviewcomments.user.js
maitain template strings in externas HTML files

This allows for easier editing and the HTML templates are compressed
before being inserted into the userscript, thus, saving bytes.

Conflicts:
	build.xml
	src/autoreviewcomments.user.js
	src/templates/popup.html
Merge branch 'external_templates' of github.com:alerque/SE-AutoReviewComments

Conflicts:
	build.xml
	src/templates/option.html
	src/templates/popup.html