Make clear some methods are deprecated
Remove deprecated calibration api

DefaultCalibratedAxis and the calibration() and setCalibration() api is
present in imglib2 beta release 19 (2.0.0-beta-19).
Merge branch 'remove-deprecations'
Fix code layout issue
Lexer: "**" allows exponentiation like "^"
Improve javadoc
Bump to pom-scijava 1.87
mailmap: add more aliases

This removes duplicates even from "git shortlog -nse --all".
imglib2-io: remove no-longer-needed SLF4J binding

The binding was in fact harmful (causing a failing test) because it was
the wrong version for Bio-Formats 4.4.9 anyway.
Deprecate imglib2-io project

This project is no longer developed, and all relevant code has moved
into SCIFIO (io.scif:scifio) at https://github.com/scifio/scifio.

SCIFIO depends on ImgLib2, using its data structures as appropriate in
its core API. The io.scif.img package now provides the ImgOpener and
ImgSaver classes, which have been improved from those of imglib2-io.
Merge branch 'master' into knip

Conflicts:
	io/src/main/java/net/imglib2/io/ImgOpener.java
	meta/src/main/java/net/imglib2/meta/DefaultCalibratedAxis.java
	ops/src/main/java/net/imglib2/ops/operation/real/unary/RealSignum.java
	ops/src/main/java/net/imglib2/ops/parse/EquationParser.java
	ops/src/main/java/net/imglib2/ops/parse/Lexer.java