Description of problem:
Request add project to group infers the project version from the button / selector, but doesn't actually add this information to the email.

Version-Release number of selected component (if applicable):
3.3.0 RC1

How reproducible:
Easy always

Steps to Reproduce:
1. Sign in as a project maintainer, go to said project
2. Select a version, click Request to add project to group
3. Select a group in the dialog
4. Enter some text for the message
5. Press Send message

Actual results:
Email received contains the standard "user has requested" part, and the added message, but no information about the originating projet version.

Expected results:
The template should be something along the lines of "Zanata user '<username>' with id '<userId>' is requesting the project <projectname>(<projectversion>) be added to the group '<groupname>'"

Additional info: