remove 'f' prefix from field names, add LEGACY_CODING_STYLE, change CODING_STYLE
Refactor RuleFieldValidator into strategy classes
More precise error message for static MethodRules
Rename RuleFieldValidator to RuleMemberValidator
Allow static @Rule members if also @ClassRule
Merge pull request #932 from rowanhill/non-static-class-rules

Allow members annotated with both @ClassRule and @Rule to be static
Move InternalViolatedAssumptionTest above the test using it
Merge branch 'master' into test-watcher-internal-assumption-violation