[gnome-todo] project: update gitignore

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 32c41aeaeadbafcc0111bbba13ca0e7d29c165ca
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Fri Apr 28 21:05:12 2017 -0300

    project: update gitignore

 .gitignore |   52 ++++++++++++++++++++++++++++++++++++++++++++++++++--
 1 files changed, 50 insertions(+), 2 deletions(-)
---
diff --git a/.gitignore b/.gitignore
index b28a1ac..3c2966f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,7 +12,6 @@
 .*.sw[nop]
 .deps
 .dirstamp
-.gitignore
 GPATH
 GRTAGS
 GSYMS
@@ -80,4 +79,53 @@ src/.deps
 src/Makefile
 src/Makefile.in
 stamp-h1
-tags
+**/tags*
+.flatpak-builder
+gtk-doc.make
+.flatpak-builder/
+ABOUT-NLS
+Makecache
+doc/reference/gnome-todo.types
+m4/codeset.m4
+m4/extern-inline.m4
+m4/fcntl-o.m4
+m4/gettext.m4
+m4/glibc2.m4
+m4/glibc21.m4
+m4/gtk-doc.m4
+m4/iconv.m4
+m4/intdiv0.m4
+m4/intl.m4
+m4/intldir.m4
+m4/intlmacosx.m4
+m4/intmax.m4
+m4/inttypes-pri.m4
+m4/inttypes_h.m4
+m4/lcmessage.m4
+m4/lib-ld.m4
+m4/lib-link.m4
+m4/lib-prefix.m4
+m4/lock.m4
+m4/longlong.m4
+m4/po.m4
+m4/printf-posix.m4
+m4/progtest.m4
+m4/size_max.m4
+m4/stdint_h.m4
+m4/threadlib.m4
+m4/uintmax_t.m4
+m4/visibility.m4
+m4/wchar_t.m4
+m4/wint_t.m4
+m4/xsize.m4
+**/*.valid
+po/Makevars.template
+po/Rules-quot
+po/boldquot.sed
+po/en@boldquot.header
+po/en@quot.header
+po/insert-header.sin
+po/quot.sed
+po/remove-potcdate.sed
+po/remove-potcdate.sin
+po/stamp-po