Update freemarker version to 2.3.20

Signed-off-by: Khushbu Shrivastava <khushbu.shrivastava@intel.com>
Update freemarker version to 2.3.20 (take 2)

Signed-off-by: Khushbu Shrivastava <khushbu.shrivastava@intel.com>
add support to error statistics ui
ui support
correct wrong log level in cosbench-mock and cosbench-swift
add support on driver side
remove the improper implementation on controller side
refine driver state on controller web interface
add download log on driver web
add ui support on controller web
Revert "Config UI: Change stage summary to include stage progress, running time"

This reverts commit eba6cb4ae7f5171a88f8db1fceb6396cf48a5efe.
revert the update to freemarker library

Signed-off-by: ywang19 <yaguang.wang@intel.com>
enable configuration inheritance
Merge branch '0.4.0.1' of https://github.com/intel-cloud/cosbench into 0.4.0.1

Conflicts:
	dev/cosbench-driver-web/WEB-INF/spring/driver-web-context.xml
fix merge conflicts
Merge pull request #209 from Khushbu27/0.4.0.1

Freemarker version update freemarker-2.3.20
Merge pull request #6 from intel-cloud/0.4.0.1

0.4.0.1