Update source & target query optimization docs with Andi's feedback on http://sources.forgerock.org/cru/CR-4673

git-svn-id: https://svn.forgerock.org/openidm/trunk@4075 d98387aa-ee2c-4292-a9e6-504d2a719fd3
Addition of the sync log file and cleanup prior to addressing OPENIDM-2371

git-svn-id: https://svn.forgerock.org/openidm/trunk@4076 d98387aa-ee2c-4292-a9e6-504d2a719fd3
OPENIDM-1624 - Reapplying fix due to loss during 3.1 merge

git-svn-id: https://svn.forgerock.org/openidm/trunk@4077 d98387aa-ee2c-4292-a9e6-504d2a719fd3
Bug fixes:

CR-4871
CR-4876

git-svn-id: https://svn.forgerock.org/openidm/trunk@4078 d98387aa-ee2c-4292-a9e6-504d2a719fd3