Remove yeomanConfig, switch references to underscore templating
Remove yeomanConfig, switch references to underscore templating

Fixes #154

snatera15/generator-webapp-material,amercier/generator-webapp-php,snatera15/generator-webapp-material,narainsagar/generator-webapp-php,narainsagar/generator-webapp-php,amercier/generator-webapp-php,amercier/generator-webapp-php,narainsagar/generator-webapp-php