Removed unused collNames() func.
TestVBucketString().
TestRestGetRuntime().
testRestGetJson() helper func.
TestRestNSSettingsStats().
TestRestPostRuntimeGC().
TestRestGetSettings().
TestRestNSPoolsDefaultTasks().
TestRestGetRuntimeMemStats().
Made parseBucketName() slightly more testable.
TestRestGetBucketStats().

Also, parameterized some stats-related durations for testability.
Removed unused OttoToGoArray().
TestRestGetBucket().
TestDirIsDir().
TestOttoFromGoArray().
TestVIndexKeyParseBad() error cases.
TestBadOttoNewFunction().