rubygem-erubis-2.7.0-bp152.3.15

- update to new packaging scheme

- remove version suffix

- license update: MIT
  See the license in the data/ directory

- use new gem2rpm to provide new provisions

- Ran spec-cleaner

- move another documentation to doc subpackage to save space at
  runtime

- initial package for the 2.7 branch (2.7.0)