New Matchers implementation

- simpler
- less templates and machinery
- no cloning, copying or unnecessary heap allocations
- better factored

include/internal/catch_impl.hpp

@@ -91,11 +91,6 @@ namespace Catch {
     TestSpec::TagPattern::~TagPattern() {}
     TestSpec::ExcludedPattern::~ExcludedPattern() {}
 
-    Matchers::Impl::StdString::Equals::~Equals() {}
-    Matchers::Impl::StdString::Contains::~Contains() {}
-    Matchers::Impl::StdString::StartsWith::~StartsWith() {}
-    Matchers::Impl::StdString::EndsWith::~EndsWith() {}
-
     void Config::dummy() {}
 
     namespace TestCaseTracking {