EDIT

removing shut down edit map server edit.br.fgov.be

Merge remote-tracking branch 'origin/6614_cdm_taxontree' into develop

better map preview by limiting max width

ref #6614: icons to travers taxontree appear correctly.

fixes the regex so $3 correctly includes the double-quote rather than $2.
The distinction for mozilla is therefore no longer needed.

ref #6573 minor bug fix

• proper handling of missing settings

ref #6573 fixing overlay layer zindex and removing flora-cuba hack

fix #6303 using same projection for overlays as for baselayer

fix #6573 wms overlay layer and some bugfixes:

• bug: base layers added multiple times - fixed
• problems in settings documentation solved

fixing typo

fixing missing html support in descriptions of image gallery settings