1.5.0

This release of string_view lite provides constexpr comparison via compare() for C++14 (#34, thanks to @mcskatkat).

It contains the following fixes and changes:

Fixes:

• Fix detail::length() for non-optimized compilation (#33, thanks to @augustheart)
• Fix operator operator!=(basic_string_view, std::basic_string).

Changes:

• Provide constexpr comparison via compare() for C++14 (#34, thanks to @mcskatkat)
• For char type, use __builtin_memcmp(), __builtin_strlen(), memcmp() or strlen() (#34, thanks to @mcskatkat).
• Express operator!=() in operator==()
• Add IDE folders/files and build folder to .gitignore (.vs, .vscode, CodeBlocks, build)
• Add .editorconfig file