[enh][fix] update to latest dependencies ++ fix tests & travis test runner

WARNING: dependency changes

searx/plugins/__init__.py

@@ -26,8 +26,8 @@ from searx.plugins import (https_rewrite,
                            tracker_url_remover,
                            vim_hotkeys)
 
-required_attrs = (('name', str),
-                  ('description', str),
+required_attrs = (('name', (str, unicode)),
+                  ('description', (str, unicode)),
                   ('default_on', bool))
 
 optional_attrs = (('js_dependencies', tuple),

searx/plugins/https_rewrite.py

@@ -21,7 +21,7 @@ from lxml import etree
 from os import listdir, environ
 from os.path import isfile, isdir, join
 from searx.plugins import logger
-from flask.ext.babel import gettext
+from flask_babel import gettext
 from searx import searx_dir
 
 

searx/plugins/open_results_on_new_tab.py

@@ -14,7 +14,7 @@ along with searx. If not, see < http://www.gnu.org/licenses/ >.
 
 (C) 2016 by Adam Tauber, <asciimoo@gmail.com>
 '''
-from flask.ext.babel import gettext
+from flask_babel import gettext
 name = gettext('Open result links on new browser tabs')
 description = gettext('Results are opened in the same window by default. '
                       'This plugin overwrites the default behaviour to open links on new tabs/windows. '

searx/plugins/search_on_category_select.py

@@ -14,7 +14,7 @@ along with searx. If not, see < http://www.gnu.org/licenses/ >.
 
 (C) 2015 by Adam Tauber, <asciimoo@gmail.com>
 '''
-from flask.ext.babel import gettext
+from flask_babel import gettext
 name = gettext('Search on category select')
 description = gettext('Perform search immediately if a category selected. '
                       'Disable to select multiple categories. (JavaScript required)')

searx/plugins/self_info.py

@@ -14,7 +14,7 @@ along with searx. If not, see < http://www.gnu.org/licenses/ >.
 
 (C) 2015 by Adam Tauber, <asciimoo@gmail.com>
 '''
-from flask.ext.babel import gettext
+from flask_babel import gettext
 import re
 name = "Self Informations"
 description = gettext('Displays your IP if the query is "ip" and your user agent if the query contains "user agent".')

searx/plugins/tracker_url_remover.py

@@ -15,7 +15,7 @@ along with searx. If not, see < http://www.gnu.org/licenses/ >.
 (C) 2015 by Adam Tauber, <asciimoo@gmail.com>
 '''
 
-from flask.ext.babel import gettext
+from flask_babel import gettext
 import re
 from urlparse import urlunparse
 

searx/plugins/vim_hotkeys.py

@@ -1,4 +1,4 @@
-from flask.ext.babel import gettext
+from flask_babel import gettext
 
 name = gettext('Vim-like hotkeys')
 description = gettext('Navigate search results with Vim-like hotkeys '