using dynamic_variables

@alanir - we need to remove the brackets off the dynamic variable value if it's a real value (like $varible1) etc.

```
-d "job[dynamic_variables][<VARNAME1>]=CurrentTime()" 
-d "job[dynamic_variables][<VARNAME1>]=$<VARNAME>" 
-d "job[dynamic_variables][<VARNAME1>]='Some String'"