We now have nearly perfect postscript and raser file output.

Postscript and raster file outputs now give results that look nearly identical
or identical compared with the figure in the original plot window. Also, a
window is not created unnecessarily if the script only uses Prima to create the
images. Example scripts have spurious (experimental) format conversion code
removed.
Added function technical documentation template
Merge pull request #26 from vikasnkumar/master

Adding a custom format tick subroutine option instead of plain sprintf when the tick is drawn
Merge branch 'master' of github.com:run4flat/PDL-Graphics-Prima
Fix invocations of $::application->yield

I had added invocations of $::application->yield to PDL::Graphics::Prima's
on_changetitle and PDL::Graphics::Prima::Axis's repaint_parent methods.
These broke animations in one of my applications due to deep recursion of
some sort. This commit makes those yields conditioned on the definedness of
$PERLDL::TERM, the only plausible situation in which we would need such
immediate updates.
Merge branch 'master' of github.com:run4flat/PDL-Graphics-Prima
Merge branch 'master' of github.com:run4flat/PDL-Graphics-Prima
Use proper px->pt conversion now, and get rid of sample output files.
Added mouse position tracker example
Still working on Changes file
Noted tick labeling in the Changes file
Added idea for axis high zoom level handling
Updated legal stuff
Fixed docs typo lineStyles -> linePattern