changed the default license and terms of use
adding popover messages for terms of use
updated handlebars fixes #1063
add explanation for terms of use & license popover, delete messages.js as it was no longer used
added explanation popovers
added explanation for terms of use and license
Update corpus_edit_embedded.handlebars

very minor change before merging
Update Corpus.js

very minor change before merging
Update Corpus.js
Merge pull request #1064 from hisakonog/master

License and terms as objects