fix for GetBestEmailAddress: now works inside an existing database transaction as well
Reports: export to Excel file: fix invalid characters in attribute names.
this error happened when converting from csv to xml, and there was a slash or percentage sign in the column name
postgresql: recreateDatabase: avoid notices about creating tables
use GetNewOrExistingAutoReadTransaction instead of GetNewOrExistingTransaction for GetBestEmailAddressWithDetails
merge from Branch 'lp:~tpokorra/openpetraorg/20141002_various_fixes'