Fix: "Change glyph" command would fail if the y mapping list was empty.
Fix out-of-source-tree builds.
Some files now expect to be able to use paths relative to the top of the source tree.
Merge pull request #397 from jhps/srcdir-fix

Fix out-of-source-tree builds.
Merge pull request #398 from JoesCat/master

minor update
Creation date formatting fixed.

Used kludge to bypass an fprintf bug which didn't like doing +/- and then
zero padding a time value, therefore seperated these into 2 steps.