[FIXED JENKINS-9679] integrated remoting 2.21 that contains the fix.
[maven-release-plugin] prepare release jenkins-1.499
[maven-release-plugin] prepare for next development iteration
updated changelog for release
updated changelog as a part of the release
merged back the RC branch

Conflicts:
	changelog.html
Typo.
Changed Javadoc according to jglick's recommendation
Fixed typos in French translation

- "systême" --> "système" (5 times)
- double quotes
Merge pull request #670 from olivierlemasle/master

Fixing typos on French translation (in the "Administrer Jenkins" page)