Renamed apidoc -> doc

doc/fsl.utils.transform.rst

doc/fsl.utils.typedict.rst

doc/fsl.utils.webpage.rst

doc/fsl.version.rst

doc/images/atlasinfopanel.png

doc/images/atlasoverlaypanel.png

doc/images/atlaspanel_overlay_names.png

doc/images/canvassettingspanel.png

doc/images/clusterpanel.png

doc/images/colourbarbitmap.png

doc/images/editor.png

doc/images/fsldirdialog.png

doc/images/fsleyes.png

doc/images/fsleyes_architecture.png

doc/images/fsleyes_architecture.xcf

doc/images/fsleyestoolbar.png

doc/images/histogramcontrolpanel.png

doc/images/histogramlistpanel.png

doc/images/histogrampanel.png

doc/images/lightboxpanel.png