[json-glib] Drop RFCs from the release tarball

[Emmanuele Bassi <ebassi src gnome org>]

commit 507fb1196c49c1db22c61d789f40bef3e06cf9c6
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Sat Mar 18 18:05:50 2017 +0000

    Drop RFCs from the release tarball
    
    Their license is not generally compatible with re-distribution in
    various Linux downstreams, and we keep them in the Git repository
    only.

 .gitattributes |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/.gitattributes b/.gitattributes
index fffe69f..44e32de 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -4,3 +4,6 @@
 json-glib.doap          export-ignore
 
 make_release.sh         export-ignore
+
+draft-zyp-json-schema-02.txt    export-ignore
+rfc4627.txt                     export-ignore