patch 8.0.0906: don't recognize Couchbase files

Problem:    Don't recognize Couchbase files.
Solution:   Add filetype detection. (Eugene Ciurana, closes #1951)
diff --git a/src/testdir/test_filetype.vim b/src/testdir/test_filetype.vim
index d6ecfb2..9cce23a 100644
--- a/src/testdir/test_filetype.vim
+++ b/src/testdir/test_filetype.vim
@@ -297,6 +297,7 @@
     \ 'mush': ['file.mush'],
     \ 'muttrc': ['Muttngrc', 'Muttrc'],
     \ 'mysql': ['file.mysql'],
+    \ 'n1ql': ['file.n1ql', 'file.nql'],
     \ 'named': ['namedfile.conf', 'rndcfile.conf'],
     \ 'nanorc': ['/etc/nanorc', 'file.nanorc'],
     \ 'ncf': ['file.ncf'],
diff --git a/src/version.c b/src/version.c
index 8073068..a941d85 100644
--- a/src/version.c
+++ b/src/version.c
@@ -770,6 +770,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    906,
+/**/
     905,
 /**/
     904,