TMDM-7769: "Show a percentage instead of a number in the match stats"

Updates data statistics service to return percentage of entity along count.
(https://jira.talendforge.org/browse/TMDM-7769)
TMDM-7769: "Show a percentage instead of a number in the match stats"

Updates data statistics service to return percentage of entity along count.
(https://jira.talendforge.org/browse/TMDM-7769)
TMDM-7769: "Show a percentage instead of a number in the match stats"

Fix incorrect JSON format (missing array start).
(https://jira.talendforge.org/browse/TMDM-7769)
Merge branch 'feature/5.6/TMDM-7769' of https://github.com/Talend/tmdm-server-se into feature/5.6/TMDM-7769

Conflicts:
	org.talend.mdm.core/src/com/amalto/core/storage/services/DataStatistics.java
TMDM-7769: show percentage as ##.## formatted number on y-axis
TMDM-7930: Fix issue in WS <-> Pojo conversion for StoredProcedure
TMDM-7900: "welcome page met err with db2 storage"

Adds DB2 to the databases that requires on-the-fly modification when a "=" is used on a CLOB column.
(https://jira.talendforge.org/browse/TMDM-7900)
TMDM-7769: "Show a percentage instead of a number in the match stats"

Prevents divide by zero in data statistics.
(https://jira.talendforge.org/browse/TMDM-7769)
TMDM-7766 : Add one column of message window for showing image status&recycle bin also showing image status&modify message content
TMDM-7760: revert https://github.com/Talend/tmdm-server-se/commit/6f43e6daf9039c2f8f79b25fd410b5773822b37e for TMDM-7911
TMDM-7929 : Translation task for message window showing.
TMDM-7883 Revert delete "ExportingServlet" class.
Fix wrong usage of logger
TMDM-7877: Return right list of universes
TMDM-7769: show percentage as ##.## formatted number on y-axis
TMDM-7769 Show a percentage instead of a number in the match stats
- Fix frontend json data parsing for DataChart(entity count) due to rest service change (added percentage)
TMDM-7769 Show a percentage instead of a number in the match stats
- Fix frontend json data parsing for DataChart(entity count) due to rest service change (added percentage)
Merge branch 'feature/5.6/TMDM-7769' into maintenance/5.6
TMDM-7711: init fix on overlapped x-axis labels

TMDM-7711: code refactoring

TMDM-7711: final fix on long names overlapping issue (JournalChart portlet)

TMDM-7711: fix for x-axis labels overlapping for RoutingChart and minor adjustment for totalLength of all the potential lables

TMDM-7711: minor code refactoring

TMDM-7711: show tool-tip like info for entities in data chart

TMDM-7711: rotating axis labels for DM with many entities.

1. revert original workaround (for gflot-3.2.2, no rotating label features)
2. use rotating feature in new gflot version
TMDM-7769 Show a percentage instead of a number in the match stats
- Add percentage symbol '%' in chart legend