Removed some redundant code from String::operator==()
Amended some trivial mistakes in some comments
Merge pull request #317 from TsudaKageyu/comment

Amended some trivial mistakes in some comments
Merge pull request #315 from TsudaKageyu/string-redundant

Removed some redundant code from String::operator==()
Removed some unused #ifdefs
Merge pull request #323 from TsudaKageyu/ifdefs

Removed some unused #ifdefs