Resolve "REST API documentation"

Closes #131

See merge request !55

api doc updated

See merge request !54

Resolve "SBGN import doesn't work"

Closes #132

See merge request !53

Resolve "Search tab"

Closes #123

See merge request !52

Resolve "Submaps tab"

Closes #126

See merge request !51

Resolve "add description of the fields `Project Disease` and `Organism`"

Closes #88

See merge request !50

when trying to login after tomcat restart some strange things were going
on

Resolve "Handling security errors properly"

Closes #133

See merge request !49