Add support for BIND views

https://www.isc.org/software/bind/documentation/arm95#view_statement_grammar
Linted
Correct ownership of view db directory.
Removed extraneous whitespace from Rakefile.
Merge pull request #8 from pdzwart-atlassian/master

Removed extraneous whitespace from Rakefile
Allow recursion
Create database files on slaves to enable caching
Add keyfile template for ddns use
Merge branch 'master' of https://github.com/dezwart/puppet-bind