NEW: add check on PEP to avoid executing actions if the element in the
DB has been modified
Improved docstrings on PDP, added to PEP check for updatedElements in DB
before triggering actions
FIX: Use DN and Group to select Pilots
FIX: we do not clean anymore the data from the History tables
FIX: Removed DatabaseCleanerAgent, Logs are handled differently now
FIX: redone logic on SummarizeLogsAgent to avoid deleting the History
data
FIX: updated ConfigTemplate
FIX: Negative conds
FIX: delete logs only if lastID is not None
Merge pull request #1494 from graciani/bug_fix_v6r7

FIX: Use DN and Group to select Pilots
v6r7p31
Conflicts resolved after merging with rel-v6r7
Merge pull request #1490 from ubeda/v6r8_PEP_CheckUpdatedElementsBeforeActions

[V6r8]  NEW: RSS improved docstrings
Merge pull request #1498 from ubeda/FIX_v6r8_SummarizeLogsAgent

Fix v6r8 summarize logs agent
Merge pull request #1499 from acasajus/fix-negtq

[v6r8] FIX: Negative conds
v6r8p16
Merge remote-tracking branch 'upstream/rel-v6r8' into rel-v6r8