First pass at supporting escaped property names.
Support escaped quotes in escaped properties.
Clean up tests as the COMPILER_OPT_ALLOW_OVERRIDE_ALL_PROPHANDLING wasn't getting cleaned up and that caused problems down the line. There's probably more cleanup to do, but everything passes now.
Fix formatting.
Add an option to navigate bean properties in a null safe way by default.
Merge branch 'master' of https://github.com/dandiep/mvel