Merge branch 'develop' of github.com:XIMDEX/ximdex into develop

* 'develop' of github.com:XIMDEX/ximdex:
  Delete INSTALLATION
  Showing the tour only a certain number of times, configurable on Config table.
[GUI]Fixing problem with Treeview tab hidden because CSS cascade.
[GUI] Applying correct css selector to hide welcome tab control.
Form manager generic error message
Actions can now be submitted with "enter" key
Merge branch 'featuere/form-submit' into develop
Deleting debug lines, removing metadata files and some XSL templates from the welcome screen.
Merge branch 'develop' of https://github.com/XIMDEX/ximdex into develop

Conflicts:
	inc/i18n/locale/es_ES/LC_MESSAGES/messages.mo
Update INSTALLATION.md
Update INSTALLATION.md
Update INSTALLATION.md
Update INSTALLATION.md
Update INSTALLATION.md

Simplified description of assisted installation...
Create manual_install.md
Update manual_install.md
Update manual_install.md
Delete REVISION

Deprecated file.
Allowing to call some actions for the latest docs on the welcome screen.
Merge branch 'develop' of https://github.com/XIMDEX/ximdex into develop
Fixes XTags submitting form when hitting enter