picture-related changes/fixes

- fixed log picture editing
- removed obsolete code for map pictures
- added help links to some galleries
- fixed enlargit cursor hotspots
- enlargit fine tuning, enabled dark background
map and waypoint related changed/fixes

- nicer wording of waypoint type vs. cache wp in map popup box
- fixed wiki link for additional wp in map popup box
- fixed map settings initialization, was completely broken
- increased map picture description font
- fixed old-MSIE warning
- optimized XML and JS escaping
updated and optimized setting files; updated db changelog
purged javascript: qualifiers
v3.0.5 code review: lots of small fixes and cleanup

- fixed nano selection in search form
- removed unused, duplicate thumb replacement pics
- freed mysql result in lib1 helppage-link generation
- fixed logpic-is-on-first-page calculation
- fixed and improved user option set handling
- readded map dragzoom
- improved log pic pages layout
- user pics page counter fix
discarded html preview function
discard 'data_license' table in davour of constant definitions
html escaping for waypoint map popups
stored procs update
merged stable
fixed overview map setting
customized rss forum-news display
- hide quotes
- smaller headers
- fixed font size
- paragraph formatting
merge stable
added spanish translations
start page layout finetuning
reverted search bugfix (9a5fcd4c) - needs php 5.3
fixed myhome picture count by clean implementation of table fill-up
fixed resetting map max. caches option to 0
fixed xml sitemap generation; don't count cache visits by robots
discarded email counter; rendered useless by log purging