[infra] myfaces extensions meet dvcs

it's getting easier for the community to contribute to myfaces-extensions *!

now we have official git mirrors:

https://github.com/apache/myfaces-extval

and

https://github.com/apache/myfaces-extcdi

as well as inofficial mercurial mirrors (hg isn't supported by the asf):

https://bitbucket.org/os890/extval-milestones/

and

https://bitbucket.org/os890/codi-milestones/

in case of myfaces-extensions * the mercurial repositories provide an additional feature. early adaptors can request an inofficial (external) milestone at any time. it's easier to handle issues compared to nightly builds.

dvcs like mercurial and git allow easy forking of repositories and experimenting with new features. with features like squash it's very easy to donate the result of your feature-branch!

so let's get started: fork -> experiment -> donate (your patch)!

os890 meets bitbucket

it's planned to continue with the repository at https://bitbucket.org/os890. it's easier for users to fork it. well - mercurial might be a barrier for some of you, however, it's really easy and nice (a nice mercurial intro). you can easily fork an existing repository and it's easier to merge in your enhancements. so we hopefully get rid of all the hidden forks and the pain of manual merges.