move lookup table away from logic
split import function in two
remove a bit more repetition
Documentation about translations. Closes #43
test settings for Travis. Refs #43
Merge pull request #433 from PyBossa/issue-43-i18n

Issue 43 i18n
Merge commit '7db5' into generalise-importers
Merge commit '6b83' into generalise-importers
manual merge
Merge commit 'b53a' into 3rd-try-merge