Cleared up code
Merging master to the branch
Fixed links in experiments
Added notes section to biosample details page
Merging master
change loadxl.py to update first then insert
added tests for updating, persistency
Changes to experiment interface
merging master on to branch
Fixed library link
Changed header in experiment page
Added parsing for replicates without files
Minor fix
new test xlsx
Merge branch 'master' into experiment_loading
add test documents and patch some biosample features
Added styles for main menu
Tweak
Let ValidationFailure raise supply error details.
Updating of document blobs; tests.