Jms multisite for joomla All editions

- Under J3.2, Verify that old JSimpleXML is not already installed by other extensions (ie. JVital plugin used by agora-pro) to avoid duplicated class definition that leads to a PHP Fatal error.
It is assumed that when the JSimpleXML class is present that this is the original joomla one.
- Fix the packaging concerning the "the uninstall of a template" advertised in version 1.3.29 but not correctly package (The fix was missing in the distribution).
- Update the memory limit verification to add the GB in addition to existing MB and KB

Maintenance menu

- When there is no legacy mode selected, now by default, the verification of a "Create Table" also verify all the field.
In the previous version, only the verification that the table exists was performed without structure verification.
The new default behavior is equivalent to "fix table".

Bundled with Patches definition 1.3.27

• Add JMS Tools (install) definitions for :
  - Agora Pro
  - Akeeba DocImport
  - Akeeba Release System
  - Akeeba Ticket System
  - jVoteSystem
  - Skyline Advanced Poll
• Add Joomla 3.2 sharing definition for:
  - Akeeba DocImport
  - Akeeba Release System