Merge pull request #393 from karyon/move_emailtemplate_fix_testdata

Move emailtemplate, fix testdata
fix ampersands incorrectly formatted in emails. fixes #278
Merge pull request #394 from karyon/fix_ampersands_278

fix ampersands incorrectly formatted in emails. fixes #278
fix #245: do not send mails to a person twice if he/she is delegate and editor.
fix a code duplication and the bug that resulted from it
fix the "import_ad" script
fix most of landscape low issues (mostly code styling), raise strictness to medium
fix excel export colors again
fix most of landscape medium issues