Version 4.6

Bugs:
1. "Unicode" encoding is used rather than UTF-8 in CSV file export/import for comaptibility with Excel
2. Some invalid operations could cause a crash in the integrity checker
3. Multi-attribute cells with "generate first label only" done properly
4. Sometimes reports used to lose custom fonts

Improvements:
1. Support for "Use current theme" in visual perspective
2. FILE_NAME, FILE_EXTENSION AND FILE_SIZE functions support Document attributes

New Features:
1. Single sign-on through Active Directory/LDAP