[#13] Fix assetic css rendering

* May eventually want to move away from using
  '@DCVDevPersonalSiteBundle/...' syntax because
  supposedly this can cause errors with rendering
  images.
Merge branch 'task-13-fix_assetic_css_rendering' into develop
[#14] Fix jquery assetic

* jQuery now being correctly linked into
  site with assetic.
Merge branch 'task-14-fix_js_assetic_rendering' into develop
[#15] Only render one paragraph in index.html.twig
Merge branch 'task-15-fix_index_rendering_twice' into develop
Merge branch 'develop'