What is done here: 1. All the outdated configuration flag information has been removed and replaced with the more current information. 2. Spellchecking has been done on all helpfiles and the actual errors have been fixed.
+ branches/release-2.1 -> 2.2 base + 3.0 -> branches/cxxconversion + backport some immediate 3.0 functionality for 2.2 + other stuff