Remove dependency on ChemAxon nodes (#84)

* remove MarvinSketch dependency in the tests

* add TP defn for 4.3

Author: greglandrum

org.knime.sdk.setup/KNIME-AP-4.3.target

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?><?pde version="3.8"?><target includeMode="feature" name="KNIME Analytics Platform 4.3">
+<locations>
+<location includeAllPlatforms="false" includeConfigurePhase="false" includeMode="planner" includeSource="true" type="InstallableUnit">
+<unit id="com.knime.features.explorer.serverspace.feature.group" version="0.0.0"/>
+<unit id="org.knime.features.base.feature.group" version="0.0.0"/>
+<unit id="org.knime.features.chem.types.feature.group" version="0.0.0"/>
+<unit id="org.knime.features.dbdrivers.feature.group" version="0.0.0"/>
+<unit id="org.knime.features.ensembles.feature.group" version="0.0.0"/>
+<unit id="org.knime.features.ext.itemset.feature.group" version="0.0.0"/>
+<unit id="org.knime.features.ext.jep.feature.group" version="0.0.0"/>
+<unit id="org.knime.features.ext.poi.feature.group" version="0.0.0"/>
+<unit id="org.knime.features.js.quickforms.feature.group" version="0.0.0"/>
+<unit id="org.knime.features.json.feature.group" version="0.0.0"/>
+<unit id="org.knime.features.personalproductivity.feature.group" version="0.0.0"/>
+<unit id="org.knime.features.python2.feature.group" version="0.0.0"/>
+<unit id="org.knime.features.testing.application.feature.group" version="0.0.0"/>
+<unit id="org.knime.features.xml.feature.group" version="0.0.0"/>
+<unit id="org.knime.targetPlatform.feature.group" version="0.0.0"/>
+<repository location="https://update.knime.org/analytics-platform/4.3/"/>
+</location>
+</locations>
+</target>

org.rdkit.knime.testing/META-INF/MANIFEST.MF

@@ -7,6 +7,5 @@ Bundle-Version: 4.1.0.qualifier
 Fragment-Host: org.rdkit.knime.nodes;bundle-version="4.1.0"
 Bundle-RequiredExecutionEnvironment: JavaSE-1.8
 Require-Bundle: org.knime.testing;bundle-version="[3.7.0,5.0.0)",
- org.knime.chem.base;bundle-version="[3.6.0,5.0.0)",
- jp.co.infocom.cheminfo.marvin;bundle-version="[3.6.0,5.0.0)"
+ org.knime.chem.base;bundle-version="[3.6.0,5.0.0)"
 Bundle-ClassPath: rdkit-testing.jar