Significant changes to decision making; some new roles and

Significant changes to decision making; some new roles and
 minor changes

Added RTC Policy
Added +2 ... -2 scheme for votes
Clarified lazy consensus
Added Informal Votes/Surveys
Added Project Team Leadership role and Decision making
Changed Project Wide Decision making: per project based scheme
Clarified scope of Decision making

Modified sections which have dependencies on changes above

Signed-off-by: Lars Kurth <lars.kurth@citrix.com>