Make .thrift files non-executable since we removed the shebangs


git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@753610 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/test/DocTest.thrift b/test/DocTest.thrift
old mode 100755
new mode 100644
diff --git a/test/threads/ThreadsTest.thrift b/test/threads/ThreadsTest.thrift
old mode 100755
new mode 100644
diff --git a/tutorial/shared.thrift b/tutorial/shared.thrift
old mode 100755
new mode 100644
diff --git a/tutorial/tutorial.thrift b/tutorial/tutorial.thrift
old mode 100755
new mode 100644