Clean up method ordering and section headers

See:
http://imagej.net/Coding_style#Ordering_of_code_blocks

Author: ctrueden

src/main/java/org/scijava/AbstractGateway.java

@@ -274,13 +274,15 @@ public String getTitle() {
 	}
 
 	@Override
-	public String getVersion() {
-		return getApp().getVersion();
+	public String getInfo(final boolean mem) {
+		return getApp().getInfo(mem);
 	}
 
+	// -- Versioned methods --
+
 	@Override
-	public String getInfo(final boolean mem) {
-		return getApp().getInfo(mem);
+	public String getVersion() {
+		return getApp().getVersion();
 	}
 
 }

src/main/java/org/scijava/app/AbstractApp.java

@@ -56,33 +56,13 @@ public abstract class AbstractApp extends AbstractRichPlugin implements App {
 	/** JAR manifest with metadata about the application. */
 	private Manifest manifest;
 
+	// -- App methods --
+
 	@Override
 	public String getTitle() {
 		return getInfo().getName();
 	}
 
-	@Override
-	public String getVersion() {
-		// NB: We do not use VersionUtils.getVersion(c, groupId, artifactId)
-		// because that method does not cache the parsed Manifest and/or POM.
-		// We might have them already parsed here, and if not, we want to
-		// parse then cache locally, rather than discarding them afterwards.
-
-		// try the manifest first, since it might know its build number
-		final Manifest m = getManifest();
-		if (m != null) {
-			final String v = m.getVersion();
-			if (v != null) return v;
-		}
-		// try the POM
-		final POM p = getPOM();
-		if (p != null) {
-			final String v = p.getVersion();
-			if (v != null) return v;
-		}
-		return "Unknown";
-	}
-
 	@Override
 	public POM getPOM() {
 		if (pom == null) {
@@ -145,4 +125,28 @@ public void quit() {
 		getContext().dispose();
 	}
 
+	// -- Versioned methods --
+
+	@Override
+	public String getVersion() {
+		// NB: We do not use VersionUtils.getVersion(c, groupId, artifactId)
+		// because that method does not cache the parsed Manifest and/or POM.
+		// We might have them already parsed here, and if not, we want to
+		// parse then cache locally, rather than discarding them afterwards.
+
+		// try the manifest first, since it might know its build number
+		final Manifest m = getManifest();
+		if (m != null) {
+			final String v = m.getVersion();
+			if (v != null) return v;
+		}
+		// try the POM
+		final POM p = getPOM();
+		if (p != null) {
+			final String v = p.getVersion();
+			if (v != null) return v;
+		}
+		return "Unknown";
+	}
+
 }

src/main/java/org/scijava/script/ScriptInfo.java

@@ -318,6 +318,8 @@ public String getLocation() {
 		return new File(path).toURI().normalize().toString();
 	}
 
+	// -- Versioned methods --
+
 	@Override
 	public String getVersion() {
 		final File file = new File(path);