LPS-50604 Remove method PortalUtil.getClassNamePortletId() which is not used from anywhere

Conflicts:
	readme/7.0/BREAKING_CHANGES.markdown
LPS-51540 - Column names are misspelled in the list view of the Documents and Media portlet
LPS-51499 Paginator in Documents and Media portlet not fully localised
LPS-50604 Fix a bug in Journal: it was capturing an incorrect exception due to a copy/paste from wiki
LPS-50604 We can get rid of this call, since some lines below, the call
to MultiVMPoolUtil.clear(); will clear the Wiki cache anyway.
LPS-50604 Stop using InstancePool to avoid class loading issues when migrating to OSGi

Conflicts:
	portal-impl/src/com/liferay/portlet/wiki/util/WikiUtil.java
LPS-50604 SF
LPS-50604 Remove obsolete message bus destination name pointing to wiki
LPS-51557 Taglib already appends "Id" to the param name
LPS-50684 Allow to update existing repositories other then the default one
LPS-50684 Do not export the temp file repositories
LPS-50684 SF
LPS-44761 We should show only web content on the current site
LPS-51275 Remove redundant namespace

The aui:button taglib adds the namespace to the id attribute.
LPS-51275 Expose ddmForm component
LPS-51275 Serialize form before ajax call
LPS-51275 SF
LPS-51291 Fixing validation for required fields.
LPS-51291 Test - Covering more logical branches for the DDMFormValuesValidator
LPS-51291 Iterate though all available locales