Remove complex import order

Google's style guide changed its complex rules to be much simpler: all
static imports, then all non-static imports:

https://google.github.io/styleguide/javaguide.html#s3.3.3-import-ordering-and-spacing

google-java-format will also understand this order.

Change the Eclipse project settings and .importorder file, and reorder
everything.

Change-Id: I0bd3a085ef00ceee88d06e2c4b4711f1f696e4ae

tools/gitiles.importorder

diff --git a/tools/gitiles.importorder b/tools/gitiles.importorder
index e5f83dc..e372a41 100644
--- a/tools/gitiles.importorder
+++ b/tools/gitiles.importorder
@@ -1,9 +1,3 @@
 #Organize Import Order
-#Thu Dec 27 15:20:37 PST 2012
-6=javax
-5=java
-4=org
-3=net
-2=junit
-1=com
-0=com.google
+#Fri Aug 19 16:08:40 EDT 2016
+0=