Fix typos in comments in Applications
Fix up typos in documentation in InstanceRegistry
Fix typos in JavaDoc/comments in EurekaBootStrap
Clean up code formatting in Applications
Fix naming in InstanceRegistry to be CheckStyles compliant
Make InstanceRegistry locks final
Convert for loops to foreach loops in InstanceRegistry
Remove redundant checks for null in InstanceRegistry
Fix formatting and CheckStyles naming in EurekaBootStrap
Remove redundant continue in loop