mobilizer 7.x-1.0-beta1

• Add permission to other users to manage mobilizer.
• Betterment of menu parsing
• If no any menu items exist. Fix warning issue.
• Implement validations for start mobilizer like (if menu doesn't exist or using external links then skip the process, if not valid menu).
• Change theme name and their related file names.
• Add permission for other links, they were not applied by hitting directly in url without completing start mobilizer.
• Make footer background as well as header background after any changes.
• Add new content blocks (only added in prebuilt pages)-
1. Add "video" content block.
2. Add "Image slider" Content block.
3. Add "email us" content block.
4. Add "Social icons" Content block.
5. Add "Share" Content block.
6. Add "Image" Content block.