Subcontext fixes and formatting
Added type-erased parser, tests and examples
Moved is_parser trait to its own file
new facade-based API
Merge pull request #13 from jamboree/develop

x3 new facade-based API
fix transform_params/ fix integer_sequence for clang
Merge pull request #15 from jamboree/develop

fix transform_params/ fix integer_sequence for clang
Quality get with x3::get
Qualify get with x3::get
Qualify get with x3::get
Fixed const issue in attr_parser
Fixes for boost::optional explicit operator bool
Fix for #8537: Qi `skip` fails when nested under two or more levels of `lexeme`
Merge pull request #17 from wichtounet/patch-1

Qualify get with x3::get
Merge branch 'develop' of https://github.com/boostorg/spirit into develop
Fix links to moved performance files.
Merge pull request #18 from K-ballo/fix-8537

Fix for #8537: Qi `skip` fails when nested under two or more levels of `...
Merge pull request #25 from danieljames/develop

Fix path to moved files.
Merge branch 'develop' of https://github.com/boostorg/spirit into develop