Initial code import. 

This plug-in is pretty functional already:

* Working editor with content-assist based on grammar, context and data type
* Imports of .proto files works
* Content-assist for common options
* Outline View
* Preferences for using protoc on save
* Error markers based on protoc's output

com.google.eclipse.protobuf.ui/.project

diff --git a/com.google.eclipse.protobuf.ui/.project b/com.google.eclipse.protobuf.ui/.project
new file mode 100644
index 0000000..aa5cde0
--- /dev/null
+++ b/com.google.eclipse.protobuf.ui/.project
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>com.google.eclipse.protobuf.ui</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.ManifestBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.SchemaBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+		<nature>org.eclipse.pde.PluginNature</nature>
+	</natures>
+</projectDescription>