Always remove the jsessionid parameter from the downloaded file name

On some system or configuration where cookies are not accepted, the jessionid is part of the URLs.

The link to download a file will look like http://localhost:8080/nuxeo/nxfile/default/681a569b-91ea-4b3a-9852-3fc83f3867a6/blobholder:0/myfile-1.3.4.zip;jsessionid=90810978894678364

Then the downloaded file name will be myfile-1.3.4.zip;jsessionid=90810978894678364 instead of myfile-1.3.4.zip

The download servlet should always clean the file name to remove the jsessionid parameter.