Fix random test failure in TestChefApiClient

The check of the timestamp header fails when rolling over to a new
minute.    Change the code to compare the length of the interval
instead.

Issue-ID: APPC-411
Change-Id: I3a98aab2de878335a2bc320d261fee3101fd0652
Signed-off-by: Skip Wonnell <skip@att.com>
diff --git a/appc-adapters/appc-chef-adapter/appc-chef-adapter-bundle/.gitignore b/appc-adapters/appc-chef-adapter/appc-chef-adapter-bundle/.gitignore
index 755cdc3..541e608 100644
--- a/appc-adapters/appc-chef-adapter/appc-chef-adapter-bundle/.gitignore
+++ b/appc-adapters/appc-chef-adapter/appc-chef-adapter-bundle/.gitignore
@@ -1,3 +1,4 @@
 /bin/
 /target/
-/.settings/
+/target-ide/
+/.settings/
\ No newline at end of file