Added regular exression validation for Workload Matrix Name and Workload Name fields on advanced configuration web page
Fixed issue - When submit option was chosen on advanced web UI, some directory structure was unncessarily getting created in cosbnech installation directory
Removed subdirectory creation for each workload generated for advanced configuration UI
For advanced web ui, generating workload conf xmls under \workloads directory
Merge pull request #172 from giteshnandre/cosbench-advanced-ui-issue-fixes

Cosbench advanced ui issue fixes