Add --unmerged, self document --wip

Signed-off-by: Joey Armstrong <jarmstrong@linuxfoundation.org>
Change-Id: I6d02985c7ae31bc9cddeac685622dbae0284fdb3
diff --git a/gerrit/bin/gerrit.sh b/gerrit/bin/gerrit.sh
index 572d1d3..4e51869 100755
--- a/gerrit/bin/gerrit.sh
+++ b/gerrit/bin/gerrit.sh
@@ -309,7 +309,7 @@
 
         --todo) source "$root/gerrit/todo.sh" ;;
 
-        --wip)
+        --unmerged|--wip)
             declare -a args=()
             args=('--status' 'open')
             [[ $# -gt 0 ]] && { args+=("$@"); }
diff --git a/gerrit/gerrit/usage/main.sh b/gerrit/gerrit/usage/main.sh
index 5fe3cd3..7a9f4ed 100644
--- a/gerrit/gerrit/usage/main.sh
+++ b/gerrit/gerrit/usage/main.sh
@@ -44,6 +44,7 @@
   --serv           Gerrit server name
 
   --search
+  --unresolved     Alias for --wip
   --wip            Query for open/unmerged patches.
 
   --admins a