UP-3562
- Addressing Portal Parameter values splitting on commas
-- Adding hidden field to piggyback arbitrary parameter fields
-- Removing Empty StringList items from the StringListAttribute values to not save the piggybacked field
MUMMNG-409
UP-3811 Add merging person dir DAO and clarify docs

Don't want to add custom attribute sources to the list of DAOs in
the cascading DAO. I.e. the existing comments in
personDirectoryContext.xml gave one the wrong idea.

This commit wraps the cascading DAO in a merging DAO and updates
comments to strongly suggest adding custom sources to the latter
rather than the former.

This is a cherry-pick and re-word of
67612e9794051fc3cfa7d0303f6b85b8a140fd9c from ssp-master.
UP-3760 - Adding portlet on locked tab/column

This commit is only a try to remove whitespace before all other commit
of this PR.

Conflicts:
	uportal-war/src/main/resources/layout/structure/columns/columns.xsl
UP-3760 - Adding portlet on locked tab/column

Solve ISSUE in adding a management of the error in the controller with a local message to return of the
user in waiting this is managed and shown in the UI. So an improvment of
the UI still exist after this commit.
UP-3760 - Adding portlet on locked tab/column

Adding a content where to show messages returned from api actions.
UP-3760 - Adding portlet on locked tab/column

This commit is to hide in the portal gallery the menu add portlet when
there isn't a column that as the class canAddChildren, also this update
the gallery menu when a column is added or deleted
UP-3760 - Adding portlet on locked tab/column

Add filtering on locked tab to avoid to purpose to the user to add the
used portlet in a locked tab.

Conflicts:
	uportal-war/src/main/resources/layout/structure/columns/columns.xsl
UP-3760 Fixed message strings to use two single quotes instead of one in messages

Conflicts:
	uportal-war/src/main/resources/properties/i18n/Messages_fr.properties
NOJIRA restored correct version of about message
Merge branch 'UP-3562' of https://github.com/shawnconnolly/uPortal
NOJIRA Improved message strings on admin manage portlet UI
UP-3815 Use term 'Preference' for add preferences in manage portlets
Merge pull request #165 from shawnconnolly/UP-3802,UP-3803,UP-3804,UP-3805,UP-3810

UP-3802,UP-3803,UP-3804,UP-3805,UP-3810: Respondr Theme Updates
NOJIRA Removed searchLauncher from porlets in customize drawer
UP-3824 Add listener ch.qos.logback.classic.selector.servlet.ContextDetachingSCL
UP-3824 Add listener ch.qos.logback.classic.selector.servlet.ContextDetachingSCL
UP-3823 - Enhance UP-3701 to change logging initialization of Listener classes
UP-3823 - Cleaned up the comments
UP-3835: Adding DB Module, Updating all uportal packaged modules and portlets that require the db drivers to leverage the new module