gnu: Add java-eclipse-core-contenttype.

* gnu/packages/java.scm (java-eclipse-core-contenttype): New variable.

gnu: Add java-eclipse-equinox-preferences.

* gnu/packages/java.scm (java-eclipse-equinox-preferences): New variable.

gnu: Add java-eclipse-equinox-app.

* gnu/packages/java.scm (java-eclipse-equinox-app): New variable.

gnu: Add java-eclipse-equinox-registry.

* gnu/packages/java.scm (java-eclipse-equinox-registry): New variable.

gnu: Add java-eclipse-core-jobs.

* gnu/packages/java.scm (java-eclipse-core-jobs): New variable.

gnu: Add java-osgi-service-event.

* gnu/packages/java.scm (java-osgi-service-event): New variable.

gnu: Add java-eclipse-equinox-common.

* gnu/packages/java.scm (java-eclipse-equinox-common): New variable.

gnu: Add java-eclipse-osgi.

* gnu/packages/java.scm (java-eclipse-osgi): New variable.

gnu: Add java-osgi-core.

* gnu/packages/java.scm (java-osgi-core): New variable.

gnu: Add java-osgi-annotation.

* gnu/packages/java.scm (java-osgi-annotation): New variable.

gnu: Add java-simple-xml.

* gnu/packages/xml.scm (java-simple-xml): New variable.

gnu: Add java-rsyntaxtextarea.

* gnu/packages/textutils.scm (java-rsyntaxtextarea): New variable.

gnu: Add java-usb4java.

* gnu/packages/libusb.scm (java-usb4java): New variable.

gnu: Add libusb4java.

* gnu/packages/libusb.scm (libusb4java): New variable.

gnu: Add java-commons-net.

* gnu/packages/java.scm (java-commons-net): New variable.

gnu: Add java-asm.

* gnu/packages/java.scm (java-asm): New variable.

system: grub: Actually default to 'gfxterm' for displaying the GRUB menu.

This is a followup to commit e0b2e93005188ab4d6c7413a27832ba2fb7388e8.

* gnu/system/grub.scm (eye-candy): Re-order the elements of the generated
GRUB configuration.

gnu: Add java-commons-compress.

* gnu/packages/java.scm (java-commons-compress): New variable.

gnu: Add java-jsch.

* gnu/packages/java.scm (java-jsch): New variable.

gnu: Add java-commons-net.

* gnu/packages/java.scm (java-commons-net): New variable.