Add a .gitignore to try to reduce the amount of files listed as not

in repository on git status.

cde/.gitignore

@@ -0,0 +1,19 @@
+# Compiled source
+*.o
+*.so
+*.so.2
+*.so.2.1
+*.a
+
+# Backups and editor created backups
+*.bak
+*~
+
+# flags for saying directory is complete
+DONE
+
+# imports of of headers
+imports
+
+# exports of libraries/headers
+exports