Merge pull request #2 from cmaumet/guillaumemaster

Merging changes in README
Consistent dct:format.
Another fix for dct:format.
Squashed 'nidm/' content from commit 74c8ef4

git-subtree-dir: nidm
git-subtree-split: 74c8ef4e1db5cb3a67f1fa272085910e23a1ed6d
Merge commit 'a1c896a4628b8ebf4a32ff7a53fc4dd5a9ecc5cf' as 'nidm'
Remove duplicate files from nidm repository
fix: path to owl file must include repo name
Camille Maumet	Get common testing code and files from `nidm` subtree
Remove duplicate file from nidm repository
Travis config: Update subtree before install
Merge pull request #5 from cmaumet/subtreeWithoutHistory

`git subtree` to import re-used testing code from `nidm` repository
Merge branch 'master' into guillaumemaster