- pshell import: fix units and data scaling.
- pshell import: support new multi-region scans.
- angle scans: add trim function.
- angle scans: update import_tpi_scan function.
- angle scans: fix scales of check waves in normalization.
- area display: new cursor mode for background selection.
- elog: bugfixes (attachment list, check existing logbook).
* bugfixes in pshell import
* updates to elog interface: templates, login, separate persistent and volatile data
* new header and revision information in documentation
