Maybe fix mingw build issue #255.
Fixes #255
src/options.c: Enable colors on Windows when ANSICON is installed
Merge pull request #261 from larsch/ansicon

src/options.c: Enable colors on Windows when ANSICON is installed
Adding CentOS build instructions. EOM
Added OpenBSD instructions to readme.
Merge pull request #266 from n0la/openbsd-install-instructions

Added OpenBSD instructions to readme.
Merge pull request #264 from timvisher/add-centos-build-instructions

Add CentOS build instructions
Excluded invalid initial bytes of 2 byte code.
Fixed initial bytes of 3 byte code.
Fixed non-initial bytes of multibyte code.
Merge pull request #211 from mcphail/issue_206

Fix for GitHub issue #206 in upstream
Merge pull request #267 from monochromegane/detect-utf8-files-correctly

Detect utf8 files correctly
Trailing whitespace.
Tag new release.
And bump version to 0.17pre.