Assortment of fixes suggested by Mark
Final typos hopefully
Add switch-group info to user CLI page
Capitalise POSIX.
Rename memory-configuration
Change jmvcfg.SERV.x to jvmcfg.x.SERV
Add jvm_metrics section and fix TODO ref
Fix TODO search ref
Merge pull request #894 from sbesson/Active_Directory

Added documentation for Active Directory LDAP
Add common Java-related abbreviations
Add initial monitoring/metrics draft
Remove markup from :alt: sections
Merge pull request #902 from sbesson/rebased/dev_5_0/rebased/develop/5.0.3_cli

5.0.3: CLI documentation (rebased onto develop) (rebased onto dev_5_0)
Fix 'to to' typos
Link metrics from whatsnew
Convert useful metrics list to glossary
Link from perf-jmx to jmx-config
Link to memory settings from whatsnew
Remove erroneous copy and paste
Fix indentation and closing literal markup