packaging/macosx: update version string used in DMG background image

partial cleanup of dmg_background.svg

update resources for DMG (draft for new background image); TODO: add notes about background image and compatibility with Mac OS X Leopard

update logo

svg parsing error fixed

osx-app.sh - added an help message - changed the calling syntax to make it more robust and allow to specify the directory containing python modules - removed the reference to libXinerama on Tiger. libXinerama caused many issues but they seem to be all related to people installing x11 in strange ways - use pkg-config to get pango and gtk version rather thn relying on clucky ls+sed workarounds - code reorganization and added comments - spaces to tabs osx-dmg.sh - removed python related stuff - added a command line option to get Inkscape package (the package does not have to be in the same directory now) osx-build.sh - modified according to the changes in the two other files - removed referece to X11 libraries ad such. these were commented for a while and nothing broke - added an upload commnt to send the file to modevia removed inkscape_python.ds_store modified inkscape.ds_store (larger window) dmg_background.*** - removed Python arrow - remove the word Inkscape from the arrow (useless now) and make this arrow glow green a little, as the rest of the picture - removed absolute paths to my computer

* Makefile.am, packaging/macosx/inkscape_python.ds_store, packaging/macosx/osx-build.sh, packaging/macosx/osx-app.sh, packaging/macosx/dmg_background.svg, packaging/macosx/osx-dmg.sh, packaging/macosx/dmg_background.png, packaging/macosx/dmg_set_style.scpt, packaging/macosx/inkscape.ds_store: Updates to the Mac OS X packaging scripts by Jean-Olivier Irisson to improve support for building DMGs with python bundled, as well as making everything less Fink-centric so DarwinPorts can be used as an alternative. Submitted as patch #1673087.

* packaging/osx-app.sh, packaging/macosx/inkscape.ds_store packaging/macosx/dmg_background.svg, packaging/macosx/osx-dmg.sh, packaging/macosx/dmg_background.png, packaging/macosx/dmg_set_style.scpt: Improve the disk image layout for Mac OS X releases. This is based on Jean-Olivier Irisson's work and patches, submitted as #1516212.