Bug fixes

no code changes; fixes typos in changelog and info.yml related to the packaging script

Adding Dev branch to project.

Minor update. Fixes the following:

- Issue #3222460 by firfin: PHP error after enabling module (syntax error, unexpected ')' in ...Plugin/Derivative/TBMegaMenuBlock.php )

#3222527: State machine 1.3+ throws exception error
#3207999: Uninstalling the plugin from a group type breaks it

# Fixed reposnive layout for services, features and projects shortcodes.
# Fixed full search box in mobile devices.
# Fixed other minor bugs.

Fixed DB prefixes.