Match upstream Nebula master

[tracymiranda]

In the final push to get the SCI-5737 branch sync'ed up with Nebula master, the following diffs are still pending:

org.eclipse.nebula.visualization.xygraph

• LinearScaleTickLabels.java
• LinearScaleTickLabels2.java
• Preferences.java (in package org.eclipse.nebula.visualization.xygraph.util;)
• icons folder
• images folder
• changes.txt
• *ignore files
• about.html
• build.properties
• note.txt
• pom.xml
• preferences.ini

org.eclipse.nebula.visualization.widgets

• IntensityGraphFigure.java
• Manifest.mf
• about.html
• build.properties
• .gitignore
• pom.xml

org.eclipse.nebula.visualization.widgets.tests

• .settings folder
• Manifest.mf
• package org.eclipse.nebula.visualization.widgets.figures
• build.properties
• .project
• .classpath
• pom.xml

org.eclipse.nebula.visualization.xygraph.test

• icons folder
• Manifest.mf
• images folder
• CircularBufferTest.java
• linearscale/TickFactoryTest.java
• DrawImageDraw2D.java
• DrawImageSWT.java
• GraphDemo.java
• GraphTest.java
• StaircaseTest.java
• pom.xml

[tracymiranda]

@belkassaby please take a look and tick each one as resolved.
If you need @jonahkichwacoders to finish off resolving any of these please let him know.

[belkassaby]

@tracymiranda Hi! I just pushed the following to the Diamond fork:
#14
#15
#16
#17
#18

and on the Nebula upstream I pushed the following:
https://bugs.eclipse.org/bugs/show_bug.cgi?id=519392

Those fix the items ticked above.
For the manifest, the difference is in the name of the bundle, the poms are missing and unused on the diamond fork.