addthis 7.x-4.0-alpha5

- Unsupported operand types on block save. #2181367: Error Fatal error: Unsupported operand types
- Minor changes to the documentation.
- Fixed issue #1943896 by fcjversc: Add Linkedin vertical counter.
- Fixed issue #2247245 by jmuzz: Implement button orientation option for Facebook Share button.
- Fixed issue #2250109 by matglas86, jmuzz: Add support for individual share counters.
- Fixed issue #2233585 by matglas86, mstef: Uncaught TypeError: Object #

has no method 'ready' . - Fixed issue #2206515 by matglas86, dubois: Add configuration 'services_excluded' (globally excluded services) to AddThis Basic Settings. - Fixed issue #1989152 by matglas86, labue, juampy: Allow alterations to 'addthis_share' variable in 'addthis_configuration' alter hook. - Fixed issue #2241967: Invalid preferred services on form validation. - Issue #2181367 by matglas86, dubois | 4fs: Error Fatal error: Unsupported operand types.