DOC-1194: updated resolved issues.
DOC-1229: to include info that addresses EUCA-9421 and EUCA-9377
DOC-1229: added info about sync and updating worker image
Merge branch 'master' of git.eucalyptus-systems.com:documentation
DOC-1229: added info about sync and updating worker image/related to EUCA-9421 and EUCA-9377