8931a95beca2b959c7ee73b154ce8a69acbe8599 Include util/strencodings.h which is required for IsSpace(...) (practicalswift)
7c9f7907615ff9c10a56ede5a8e47c91cb20fe3b Update KNOWN_VIOLATIONS: Remove fixed violations (practicalswift)
587924f0006d2eb9b8218b6abffe181bb9c27513 Use IsSpace(...) instead of boost::is_space (practicalswift)
c5fd143edb85d0c181e21a429f9e29d12a611831 Use ToLower(...) instead of std::tolower (practicalswift)
e70cc8983c570bbacee37a67df86b1bf959894df Use IsDigit(...) instead of std::isdigit (practicalswift)
Pull request description:
* Use `ToLower(...)` instead of `std::tolower`. `std::tolower` is locale dependent.
* Use `IsDigit(...)` instead of `std::isdigit`. Some implementations (e.g. Microsoft in 1252 codepage) may classify single-byte characters other than `[0-9]` as digits.
* Update `KNOWN_VIOLATIONS`: Remove fixed violations.
* ~~Replace use of locale dependent Boost trim (`boost::trim`) with locale independent `TrimString`.~~
* Use` IsSpace(...)` instead of `boost::is_space`
Tree-SHA512: defed016136b530b723fa185afdbd00410925a748856ba3afa4cee60f61a67617e30f304f2b9991a67b5fe075d9624f051e14342aee176f45fbc024d59e1aa82
In the config file, sections are specified by square bracket pair "[]"$,
or included in the option name itself which separated by a period"(.)".
Typicaly, [testnet] is not a correct section name and specified options
in that section are ignored but user cannot recognize what is happen.
So, add some log/stderr-warning messages if unrecognized section names
are present in the config file after checking section only args.
