cta-observatory/ctapipe: v0.8.1

This release should be compatible with v0.8.0, but with some bug fixes, speed improvements, and non-breaking features added.

Notably the DL1 format generated by v0.8.0 was missing the telescope trigger time, due to a bug which was fixed in this version.

• Use lts regression instead of siegel slopes for timing parameters (#1419) @MaxNoe
• add column description to attrs (#1437) @kosack
• Calculate log likelihood analytically in muon intensity fit (#1390) @MaxNoe
• Fix reading of optics table, write version number, fixes #1416, fixes #1359 (#1417) @MaxNoe
• Remove unused code (#1378) @MaxNoe
• Make reading subarray name optional, fixes reading of 0.8.0 dl1 files (#1428) @MaxNoe
• Add config options to disable integration correction, fixes #1418, fixes #1376 (#1429) @MaxNoe
• TailCutsDataVolumeReducer now instantiates TailCutsImageCleaner, fixes #1399 (#1404) @Hckjs
• Fix writing of camera description in subarray.to_hdf, fixes #1422 (#1423) @MaxNoe
• Add missing factor of 0.5 in muon efficiency fit, fixes #1377 (#1379) @MaxNoe
• cosmetic change to CameraDisplay (#1409) @kosack
• Read and write subarray to hdf methods (#1405) @MaxNoe
• Fix CameraGeometry coordinate conversion for spherical frames (#1407) @kosack
• Update EventSeeker (#1401) @watsonjj
• Add support to read multiple containers from one table at once (#1374) @LukasNickel
• Fix README formatting. (#1402) @nbiederbeck
• Use sparse matrix approach for neighbor window sum (#1398) @MaxNoe
• Override from_name for TelescopeComponent to be able to provide subarray (#1393) @MaxNoe
• Mask for muons, fixes #1373 (#1389) @moralejo
• Make gain_selector a trait of SimTelEventSource, fixes eventsource plugins (#1385) @MaxNoe
• Add missing is_simulation guards to stage1 tool (#1386) @MaxNoe
• Fix missing units of MuonEfficiencyContainer defaults (#1380) @MaxNoe
• Make sure event source provides R1 or DL0, fix datalevels of SimTelEventSource (#1387) @MaxNoe
• Update README (DOI + install) (#1366) @vuillaut
• Improve clarity of FixedWindowSum (#1370) @watsonjj
• Add support to read from prefixed columns (#1364) @LukasNickel
• fix exclusion pattern that accidentally removed tels_with_trigger (#1369) @kosack
• Fix FACT focal length in guessing key (#1365) @MaxNoe
• improve TwoPassWindowSum extractor (#1356) @kosack
• numba_of_islands (#1361) @MaxNoe
• Compare .value of quantity to 0 in cocentration (#1363) @MaxNoe

@Bultako, @Hckjs, @LukasNickel, @MaxNoe, @kosack, @moralejo, @nbiederbeck, @vuillaut and @watsonjj