Update index.md
Merge pull request #698 from asarturas/patch-1

Update index.md
Update ParamFetcher to handle UTF8 requirements

Added the 'u' modifier to the regex in cleanParamWithRequirements() so that parameters with UTF8 content will work with the regex.

Fixes #696
be less strict on jsonpvalidator version to be compatible with FOSJsRoutingBundle
Merge pull request #703 from uwej711/fix-dependency

be less strict on jsonpcallbackvalidator version to be compatible with FOSJsRout...
Merge pull request #702 from AntonStoeckl/param-fetcher-regex-utf8

Update ParamFetcher to handle UTF8 requirements
Allowed Constraint to be used on the requirements option on QueryParams and RequestParams
Merge pull request #700 from ClementGautier/feat-validator

[RFC] Added the constraint option on the ParamFetcher
Updat last stable version in the install instructions
Merge pull request #704 from matheo/patch-1

Update last stable version in the install instructions
ensure that building with the Symfony 2.5 dev dependency succeeds
Final links to continue to the Step 7
Continue with the Configuration Reference after the Step 7
Continue with the annotations after the configuration reference
Return to the index after the final annotations reference.
Merge pull request #705 from xabbuh/fix-symfony-master-build

ensure that building with the Symfony 2.5 dev dependency succeeds
allow newer versions of willdurand/negotiation
Merge pull request #706 from matheo/patch-2

Final links to continue to the Step 7
Merge pull request #708 from matheo/patch-4

Continue with the Configuration Reference after the Step 7
Merge pull request #709 from matheo/patch-5

Continue with the annotations after the configuration reference