synchronization performance updates
Fix bad syntax in error message
Hack around a bug preventing users from syncing with the blockchain when logging is enabled. #688
Update submodules
Some fixes / updates / improvements for jenkins builds:
 Include qt_wallet for x64 Linux and Windows on jenkins
 Remove obsolete cmake variable from Win32 jenkins build
 More verbose log for msbuild
 Added npm installs for x64 builds under jenkins.
 Updated setenv_x64.sh
merge upstream develop