New upstream version 5.1

.gitignore

README.md

core/pom.xml

core/src/main/java/net/miginfocom/layout/AC.java

core/src/main/java/net/miginfocom/layout/AnimSpec.java

core/src/main/java/net/miginfocom/layout/BoundSize.java

core/src/main/java/net/miginfocom/layout/CC.java

...src/main/java/net/miginfocom/layout/ComponentWrapper.java

...src/main/java/net/miginfocom/layout/ConstraintParser.java

...src/main/java/net/miginfocom/layout/ContainerWrapper.java

core/src/main/java/net/miginfocom/layout/DimConstraint.java

core/src/main/java/net/miginfocom/layout/Grid.java

...rc/main/java/net/miginfocom/layout/InCellGapProvider.java

core/src/main/java/net/miginfocom/layout/LC.java

core/src/main/java/net/miginfocom/layout/LayoutCallback.java

core/src/main/java/net/miginfocom/layout/LayoutUtil.java

core/src/main/java/net/miginfocom/layout/LinkHandler.java

...src/main/java/net/miginfocom/layout/PlatformDefaults.java

...src/main/java/net/miginfocom/layout/ResizeConstraint.java

core/src/main/java/net/miginfocom/layout/UnitConverter.java