[BUG FIX] Corpus view / ngrams -> url for ngrams.json adaptaed

	modifié :         gargantext_web/urls.py
	ngrams > terms

	modifié :         templates/corpus/menu.html
	Download is better than save ? Thanks for feedback

gargantext_web/urls.py

@@ -55,7 +55,7 @@ urlpatterns = patterns('',
     url(r'^project/(\d+)/corpus/(\d+)/journals', corpus_views.get_journals),
 
     # Terms view
-    url(r'^project/(\d+)/corpus/(\d+)/ngrams/ngrams.json$', corpus_views.test_ngrams),
+    url(r'^project/(\d+)/corpus/(\d+)/terms/ngrams.json$', corpus_views.test_ngrams),
     url(r'^project/(\d+)/corpus/(\d+)/terms', corpus_views.get_ngrams),
 
     # Update corpus

templates/corpus/menu.html

@@ -34,7 +34,7 @@
 						<br>
 						<a class="btn btn-default btn-lg" role="button" href="/project/{{project.id}}/corpus/{{corpus.id}}/{{view}}/update">Update</a>
 
-						<a class="btn btn-default btn-lg" role="button" href="/project/{{project.id}}/corpus/{{ corpus.id }}/corpus.csv">Save</a>
+						<a class="btn btn-default btn-lg" role="button" href="/project/{{project.id}}/corpus/{{ corpus.id }}/corpus.csv">Download</a>
 						<a type="button" class="btn btn-default btn-lg" data-container="body" data-toggle="popover" data-placement="bottom" 
 																		data-content='
 																		<ul>