port agraef's commit from Pd-l2ork: Add arduino folder to the tarball installer. commit 8c75a53e66cba080776ac6ff5b5be01da92172ee

port agraef's commit from Pd-l2ork: Make 'tar_em_up.sh -B -n' do the right thing, by moving the extra staging done by 'make deb' into a separate 'debstage' target. commit 73bf25e1dd5bd2dd37e04e7e163855d440542e43

 *hopefully fixed the remaining conflicts between pd-extended deb and pd-l2ork deb

 *fixed potential package conflict with old pd-extended due to Gem includes. Moved them to /usr/include/pd-l2ork/Gem/ instead of /usr/include/Gem

from pd-l2ork: b9cd12d16229acf3a66accc4ad0bdae03d96f19b

 istalls[sic]."
 ee538990d34d4aea0b1757976d8e8dffbeb21a38

0e1938c2d6b3c460fb6eefd027c990fbb36078f9

*further improved naming convention for settings files (default.settings and user.settings), cosmetic improvements to the indexing prompt of the help browser dialog.

*updated file locations and made names more consistent across all folders (everything now uses pd-l2ok instead of pdl2ork). Placed user settings into ~/.pd-l2ork/ folder and renamed to simply settings, placed xapian search database for the browser inside the ~/.pd-l2ork folder.