First commit with Flask-Babel and Spanish translation of account view. Refs #43
Use lazy_gettext for WTF forms. Refs #43

Note: the Spanish translation needs to be reviewed.

Note2: This work is a merge from a previous commit from @CarlosVal22
Flask-Babel for admin view. Refs #43
Applications Flask-Babel Refs #43

Note: there are some required refactoring in the flash messages
due to the HTML
About view and web.py Flask-Babel. Refs #43
Allow user locale settings stored in DB. Refs #43
Unit Tests. Refs #43
Spanish translation. Refs #43

Not finished yet.
i18n Spanish translation. Refs #43
New translation strings. Refs #43
More Spanish translations. Refs #43
Documentation about translations. Closes #43
test settings for Travis. Refs #43
Merge pull request #433 from PyBossa/issue-43-i18n

Issue 43 i18n