When I access /plugins/git/XXX it display gitphp browsing

* Task #6224

Change-Id: I15c5c7e6167b36bd1096848638057896f32fedae
Add permanent redirect header (301) for old route

* Task #6225

Change-Id: I1b10b0675fce179fbaf18232584c5dd7e623e6af
Add plugin option to activate htaccess and details in README of Git Plugin

* Task #6272

Change-Id: I67413779869f635cd90cf09c5c9ea877853cfd86
Get the correct url for git repositories in mails and tree

* Task #6297
* Task #6298

Change-Id: I2de40c72d6b7cf09a61efe29555bbffe99bc7563
Prevent unauthorized access to repository

Change-Id: If2a83197b3fd2031e23675bf2fa823b5f19c1f76
Fix URL usage in Gerrit

Change-Id: I192962dbcabe9ff9080a3568d5c8c7278239aa02
Merge remote-tracking branch 'gerrit/6074_see_meaningful_URLs_git' into tuleap-stable-master

* gerrit/6074_see_meaningful_URLs_git:
  Fix URL usage in Gerrit
  Prevent unauthorized access to repository
  Get the correct url for git repositories in mails and tree
  Add plugin option to activate htaccess and details in README of Git Plugin
  Add permanent redirect header (301) for old route
  When I access /plugins/git/XXX it display gitphp browsing

Change-Id: Id88c8b5c4f104edcd103fb79da00b9b1105ce777
Tuleap 6.10.99.53

Change-Id: I98d9f9afd9a01f7759d10abfdbcdab7c34e947a1