We can no longer maintain enough PHP5.2 compatibility to include a friendly version check.
Prepare 1.6.0 release
Next release should be 1.6.1
Merge commit 'fc26dce49f2d8c7620cdb3269348b0790c14f278' into develop
Remove the with() function.  It is not used, and we can pick it up from other libraries.
Add check for dot-directories removed (wrongly?) in c4f5ce36 - perhaps because it wasn't compatible with PHP 5.2 / webtrees 1.4
Update gitignore file.
Sync submodules.
Sync submodules
Merge remote-tracking branch 'webtrees-base/master' into develop
Sync submodules
Merge branch 'develop-1.6.0' into develop