Fixed #9038: parseVersion shouldn't set Manifest loaded flag
Issue #9061: Fix local manifest more recent than cached manifest issue
Issue #9061: Fix no success notification for empty download queue issue
Issue #9061: Made Manifest::getAssets public for assets process after update finished
Issue #9061: Fix issue about compare logic
Revert "Issue #9061: Made Manifest::getAssets public for assets process after update finished"

This reverts commit 8652864242f19ad9d5895fb6bc77e2dbfb24a717.
Issue #9061: Add std::nothrow
#9061: Add check for instantiation
Merge pull request #9039 from pandamicro/v3_origin

#9061: Polish AssetsManagerEx, bug fixes and feature added