Remove useless warning: `DeprecationWarning: reload_templates setting is
deprecated, use pyramid.reload_templates instead.`

This warning can be displayed even when the user has not used
reload_templates, because Pyramid itself can set this.

Fixes GH-57
Merge pull request #58 from msabramo/issue-57

Remove useless warning: `DeprecationWarning: reload_templates setting is deprecated, use pyramid.reload_templates instead.`