[gegl] Addedd a few documentation and a test files to the .gitignore list

[Marco Ciampa <marcoc src gnome org>]

commit 5999d043cf09d970af9e45564f2f77a990622c95
Author: Marco Ciampa <ciampix libero it>
Date:   Thu Dec 7 08:24:31 2017 +0100

    Addedd a few documentation and a test files to the .gitignore list

 .gitignore |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/.gitignore b/.gitignore
index 037113c..ab3b76a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -49,3 +49,7 @@
 cscope.files
 cscope.out
 /*.project
+/docs/NEWS.html
+/docs/gcut.html
+/docs/gegl-chain.html
+tests/simple/test-node-exponential