Update i18n-tools to latest version

.gitignore

@@ -33,6 +33,7 @@ codekit-config.json
 *.mo
 *.po
 *.prob
+*.dup
 !django.po
 !django.mo
 !djangojs.po

requirements/edx/github.txt

@@ -42,7 +42,7 @@ git+https://github.com/hmarr/django-debug-toolbar-mongo.git@b0686a76f1ce3532088c
 -e git+https://github.com/edx/edx-submissions.git@7c766502058e04bc9094e6cbe286e949794b80b3#egg=edx-submissions
 -e git+https://github.com/edx/opaque-keys.git@df0dd602869e498e512659bb4bd243309e30e19a#egg=opaque-keys
 -e git+https://github.com/edx/ease.git@b67d2928a26fe497826b6ea359b9a3d0371548a7#egg=ease==0.1.3
--e git+https://github.com/edx/i18n-tools.git@3478455a2cc59a734432264e409b8eade1e4b167#egg=i18n-tools
+-e git+https://github.com/edx/i18n-tools.git@v0.1.1#egg=i18n-tools
 -e git+https://github.com/edx/edx-oauth2-provider.git@0.5.1#egg=oauth2-provider
 -e git+https://github.com/edx/edx-val.git@v0.0.5#egg=edx-val
 -e git+https://github.com/pmitros/RecommenderXBlock.git@518234bc354edbfc2651b9e534ddb54f96080779#egg=recommender-xblock