installer fixes:

- when manually specifying paths via the command line installer, each location would get installed/uninstalled twice, and errors would occur if you provided paths with no known IDEs
 - fixed a problematic earlier checkin regarding STSFinder; now STSFinder looks in all the appropriate spots.

src/installer/lombok/installer/IdeLocation.java

@@ -48,6 +48,10 @@ public abstract class IdeLocation {
 		return new File(LiveInjector.findPathJar(IdeFinder.class));
 	}
 	
+	@Override public String toString() {
+		return getName();
+	}
+	
 	/**
 	 * Returns a full path to the provided file.
 	 * Returns the canonical path, unless that is not available, in which cae it returns the absolute path.

src/installer/lombok/installer/Installer.java

@@ -240,7 +240,6 @@ public class Installer {
 					IdeLocation loc = tryAllProviders(rawPath);
 					if (loc != null) locations.add(loc);
 					else problems.add(new CorruptedIdeLocationException("Can't find any IDE at: " + rawPath, null, null));
-					locations.add(tryAllProviders(rawPath));
 				} catch (CorruptedIdeLocationException e) {
 					problems.add(e);
 				}

src/installer/lombok/installer/eclipse/STSFinder.java

@@ -57,8 +57,7 @@ public class STSFinder extends EclipseFinder {
 	}
 	
 	@Override protected List<String> getSourceDirsOnWindows() {
-//		return Arrays.asList("\\", "\\springsource", "\\Program Files", "\\Program Files\\springsource", System.getProperty("user.home", "."), System.getProperty("user.home", ".") + "\\springsource");
-		return Arrays.asList();
+		return Arrays.asList("\\", "\\springsource", "\\Program Files", "\\Program Files\\springsource", System.getProperty("user.home", "."), System.getProperty("user.home", ".") + "\\springsource");
 	}
 	
 	@Override protected List<String> getSourceDirsOnMac() {