XD-1571 Exclude JLine from `spring-xd-hadoop`
Fix XD scripts on windows

 - Append '/' to XD_MODULE_CONFIG_LOCATION path explicitly in case of .bat scripts
 - Fix hsqldb script to take care double quotes and spaces in path
XD-1576: Remove deprecated .properties files
ModuleEnvironment changeable at runtime

XD-1577 Review comments
- EnvironmentAwareModuleOptionsMetadataResolver not an InitializingBean
XD-1558 Upgrade to spring-shell 1.1.0.RC2
Create README.md

Add instructions to run script tests
using '$version' instead of hardcoded value

using double quotes to support the '$version' property within the value string
dependency cleanup
commenting out snapshot repos for the M6 release