This keeps it out of the main include path when benchmarking is
enabled, somewhat reducing the compilation-time penalty.
Also moved some other functions into the .cpp file, especially
helpers that could be given internal linkage, and concretized some
iterator-templated code that only ever used
`std::vector<double>::iterator`.
This also goes for pkg-config installed by our CMake installation.
This includes
* Updating CMake version on Travis
* Adding a `Catch2` subfolder to the `single_include/` folder to
provide this include path both _inside_ the repository, and _outside_.
* Updated examples to build with the new paths
* Other general CMake cleanup
as prompted by #365, #430, #447 and a thread on the google group.
- split version bumping out of generateSingleHeader script
- separate scripts for bumping each version component
- "build" number only incremented for "develop" builds
- well, partially. The problem is it is matching /* … */ comments by assuming the intervening lines begin with whitespace followed by a *. This avoids it having to maintain extra state, but makes it brittle.
It was matching *it = " " + *it; as a comment!
It now matches on a single space followed by a * and this seems to work for now - but it probably needs to move to proper stateful comment handling.
- Clara now built with new stitch script (based on generateSingleInclude)
- also fixed python scripts for python 3 (print now a function rather than a keyword)
