distro_update 7.x-1.0-beta4

Changes since 7.x-1.0-beta3:

• #2355911 by caschbre: Fix undefined index 'download' adding conditional checks to continue loop if missing.
• #2333817 by caschbre: Consider Unknown project version equivalent to -dev versions.
• #2333245 by caschbre: Additional selectors to handle status background color.
• #2333249 by caschbre: Fixing last commit that changed the wrong property.
• #2333249 by caschbre: Using distribution 'name' instead of machine_name for display purposes.
• #2333245 by caschbre: Add css to inherit background color on striped tables for admin themes.
• #2333241 by caschbre: Check make version on project without parent project in array if enabled.
• #2328175 by caschbre: Changing inline help text to be more generic / helpful to site builders.
• #2328175 by caschbre: Adding consistent warning/help text on report/update pages and inline.
• #2327315 by caschbre: Added logic check around foreach to check for missing form element.