Merge pull request #170 from lgleim/master

Include less baggage in npm package

.npmignore

-node_modules
-.jshintrc
+.classpath
 .idea/
+.jshintrc
+.project
+.settings
+.vs
+*.sln
+bin
+build.sh
+classes
+docs/
+dotnet/
+etc/
+index.html
+java/
+javascript/debug/
+javascript/devel/
+javascript/examples/*
+javascript/index.html
+javascript/src/
+mxgraph-dotnet.*suo
+php/
+pom.xml
+target
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