Improve deprecated error logic to better track twig/yaml/markdown issues
Improve deprecated error logic to better track twig/yaml/markdown issues

stell/grav,tomzx/blog.tomrochette.com,Vivalldi/grav,tomzx/blog.tomrochette.com,tomzx/blog.tomrochette.com,tomzx/blog.tomrochette.com,getgrav/grav,Vivalldi/grav,getgrav/grav