Issue40

Closes #40

See merge request !43

Issue44

Closes #44

See merge request !42

Change default prefix in esrf portail page to 10.15151

See merge request !41

Issue41

Closes #41

See merge request !40

Fix bug. Datacite does not reply the same message for the same DOI from the first time replay to next ones. it references issue40.

Fix out of bound error in for loop.

See merge request !39

Issue38

Closes #38

See merge request !38

Replace the text when there is no abstract. It fixes #37

Closes #37

See merge request !37

Issue36

Closes #36

See merge request !36

Move global function which handles dates to the jsonExtractor. Move the code which handles the display of the message above the access data button to the DOIView class.

Refactor the code to remove global function which are extracting information from the data json object. Create the class jsonExtractor for that purpose.