Fix potential leak (CID 51966)
Correct session log file in xproofd parent of fork
Added structure for PROOF conf manual in Markdown
PROOF PoD conf manual added
PROOF Virtual Analysis Facility manual added
Using PROOF Virtual Analysis Facility doc added
PROOF doc: proper chapter nums in separate files
Added PROOF doc for TDataSetManagerAliEn
Added PROOF afdsmgrd configuration documentation
Added automatic indexing in PROOF pandoc Makefile