GitLab

* bugfixes in pshell import
* updates to elog interface: templates, login, separate persistent and volatile data
* new header and revision information in documentation

* remove unit tests (require third-party testing framework)
* remove sample preparation (require EPICS.XOP)
* remove scans and live view (require EPICS.XOP)

these files are useful for hard-core developers or on-site only.
for all off-site use, broken dependencies cause unnecessary problems.
contact the PEARL staff if you need to use one of the omitted files.

new functions:
- voigt_fwhm_lor
- rotate_hemi_scan
- import_tpi_scan
- draw_diffraction_cone

updated functions:
- interpolate_hemi_scan
- display_hemi_scan
- duplicate_hemi_scan

updated documentation:
- installation instructions
- readme