minor update - any interest?

[nutss1]

thanks for the qsqlcipher plugin. Had to make a few minor tweaks (like use a different copy of private headers). I made a couple of changes to get the tests to compile correctly on Fedora (26/27). Cmake's convention seems to be set (CMAKE_CXX_STANDARD 14) rather than set(CMAKE_CXX_FLAGS "-std=c++14") I also added the Qt example app sqlwidgetmapper under this project for my own verification of something tangible. Neither of these is a big deal but if you are interested, I can send over a changeset for consideration.