Memory enhancements as described in GROOVY-6171
GROOVY-6152: LazyList does not allow range access
Merge pull request #198 from andresteingress/GROOVY-6152

GROOVY-6152: LazyList does not allow range access
GROOVY-6183: Compile time errors and crashes with attribute expression on "this" in static context
GROOVY-6162: Fix type checking error with usage of "this" in static context
GROOVY-6029: Fix coercion of GString to a primitive type
Merge branch 'GROOVY-6171-memory-enhancements' of https://github.com/aeisenberg/groovy-core into aeisenberg-GROOVY-6171-memory-enhancements
GROOVY-6153: Fixed SecureASTCustomizer forgetting to check property expression receivers
Added ability to have a local user.gradle file
GROOVY-6187: GroovyResultSet Proxy not working with Object methods
GROOVY-6152: minor tweak