* work on the flags book chapter and making sure the values are initialized properly.
* Fix initialization of values used in flags or options
* update some formatting and more brace initialization
* update more formatting and fix a incorrect initializer
* more formatting and some error fixes
* more formatting
* Small formatting fix
Co-authored-by: Henry Schreiner <HenrySchreinerIII@gmail.com>
* Adding first draft of Sets
Use IsMember now
Using IsMember as backend for Set
Non-const validator backend
Move set tests to set
Clearer inits
* Drop shortcut
Tighten up classes a bit for MSVC
Check with GCC 4.8 too
* Simpler templates, but more of them
Dropping more type safety for older compilers
Shortcut string set
* Adding shortcut init
Making g++ 4.7 docker image happy
Fix Clang tidy issue with last commit
Adding one more shortcut, adding a couple of tests
* Dropping dual pointer versions of code
* Smarter shortcut syntax
* Adding slighly faster choices
* Cleanup to make InMember simpler
* Drop choices for now, adding some tests
* ValidationError is now always the error from a validator
* Support for other types of initializer lists, including enums
* Factor out type utilities, single version of IsMember code
* Adding a few tests for #224
* Minor cleanup for Validation Error
* Adding tests, moved deprecated tests
* Docs updates
