BS-2184 [IE8] File widget in forms is not read only : uploading a wrong path blocks the widget

Set Property ("contentEditable", "false") on fileUpload widget of the forms
if the browser is IE8
Merge branch '6.1.x' of https://github.com/bonitasoft/bonita-web into 6.1.x
[RELEASE 6.1.2-rc-01] Create release 6.1.2-rc-01
[RELEASE 6.1.2-rc-01] Prepare next development version 6.1.2-SNAPSHOT
Update pom.xml
update pom 6.1.2-SNAPSHOT to 6.1.3-SNAPSHOT
BS-2443 Edit boolean case variable is not well displayed
BS-2443 Edit boolean case variable is not well displayed
Merge commit '5ea2124b0f9e9415f573a7601e4c8beb8df65e14' into CoreProduct
Merge commit '22bf82c08db662825a6c4c7b9166125c1a7a0da9' into CoreProduct