Use or not use date in Blog URL.

Sometimes, Some customers ask to not use dates in the Posts URL, for some reason some Marketing staff prefers to have blog/slug and not blog/year/month/slug. This will give the user a simpler way to use or not use dates un the Blog URL. Requires the setting module to be updated.

For the Settings module, i have added the option for the Blog as well as the option for module cores to be updated in case the Website is not a fresh install.