Updated travis validate translations

Updated travis to use the i18n-tools validate
to validate translations in pullrequests.
LEARNER-2556

updated i18n-tool to latest

.travis.yml

@@ -14,6 +14,7 @@ install:
 before_script:
 - npm install -g gulp-cli
 script:
+- make validate_translations
 - make test-all
 - make test-js
 after_success:

Makefile

@@ -91,9 +91,12 @@ pull_translations: ## pull translations from Transifex
 push_translations: ## push source translation files (.po) from Transifex
 	tx push -s
 
+validate_translations: ## Test translation files
+	cd edx_proctoring && i18n_tool validate -v
+
 dummy_translations: ## generate dummy translation (.po) files
 	cd edx_proctoring && i18n_tool dummy
 
 build_dummy_translations: extract_translations dummy_translations compile_translations ## generate and compile dummy translation files
 
-validate_translations: build_dummy_translations detect_changed_source_translations ## validate translations
+check_translations_up_to_date: build_dummy_translations detect_changed_source_translations ## validate translations

requirements/dev.in

@@ -2,7 +2,7 @@
 
 diff-cover                # Changeset diff test coverage
 edx_lint==0.5.5           # Python code linting rules
-edx-i18n-tools            # For i18n_tool dummy
+edx-i18n-tools==0.4.4     # For i18n_tool dummy
 pip-tools                 # Requirements file management
 tox                       # virtualenv management for tests
 tox-battery               # Makes tox aware of requirements file changes