Merge branch '3.0' into 3.1

* 3.0:
  [travis] Fix deps=low/high builds
  fixed CS
  skip test with current phpunit bridge
  Fix for #19183 to add support for new PHP MongoDB extension in sessions.
  [Console] Fix for block() padding formatting after #19189
  [Security][Guard] check if session exist before using it
  bumped Symfony version to 3.0.9
  updated VERSION for 3.0.8
  updated CHANGELOG for 3.0.8
  bumped Symfony version to 2.8.9
  updated VERSION for 2.8.8
  updated CHANGELOG for 2.8.8
  bumped Symfony version to 2.7.16
  updated VERSION for 2.7.15
  update CONTRIBUTORS for 2.7.15
  updated CHANGELOG for 2.7.15
  Fix some lowest deps
  Fixed typos in the expectedException annotations

Conflicts:
	src/Symfony/Component/HttpKernel/Kernel.php
	src/Symfony/Component/Security/Guard/Authenticator/AbstractFormLoginAuthenticator.php

.github/travis.php

@@ -46,8 +46,8 @@
     $versions = @file_get_contents('https://packagist.org/packages/'.$package->name.'.json') ?: '{"package":{"versions":[]}}';
     $versions = json_decode($versions);
 
-    foreach ($versions->package->versions as $version => $package) {
-        $packages[$package->name] += array($version => $package);
+    foreach ($versions->package->versions as $v => $package) {
+        $packages[$package->name] += array($v => $package);
     }
 }
 

CHANGELOG-3.0.md

@@ -7,6 +7,39 @@ in 3.0 minor versions.
 To get the diff for a specific change, go to https://github.com/symfony/symfony/commit/XXX where XXX is the change hash
 To get the diff between two versions, go to https://github.com/symfony/symfony/compare/v3.0.0...v3.0.1
 
+* 3.0.8 (2016-06-30)
+
+ * bug #19217 [HttpKernel] Inline ValidateRequestListener logic into HttpKernel (nicolas-grekas)
+ * bug #18688 [HttpFoundation] Warning when request has both Forwarded and X-Forwarded-For (magnusnordlander)
+ * bug #19173 [Console] Decouple SymfonyStyle from TableCell (ro0NL)
+ * bug #19189 [Console] Fix formatting of SymfonyStyle::comment() (chalasr)
+ * bug #19211 [Form] fix post max size translation type extension for >= 2.8 (Tobion)
+ * bug #17822 [WIP]  [Form] fix `empty_data` option in expanded `ChoiceType` (HeahDude)
+ * bug #19134 Distinguish between first and subsequent progress bar displays (rquadling)
+ * bug #19061 [FORM] fix post_max_size_message translation (alt. 2) (David Badura)
+ * bug #19100 [Console] Fixed SymfonyQuestionHelper multi-choice with defaults (sstok)
+ * bug #18924 [DoctrineBridge] Don't use object IDs in DoctrineChoiceLoader when passing a value closure (webmozart)
+ * bug #19138 [DomCrawler] No more exception on field name with strange format (guiled, fabpot)
+ * bug #18935 [Form] Consider a violation even if the form is not submitted (egeloen)
+ * bug #19127 [Form] Add exception to FormRenderer about non-unique block names (enumag)
+ * bug #19118 [Process] Fix pipes cleaning on Windows (nicolas-grekas)
+ * bug #19128 Avoid phpunit 5.4 warnings on getMock (2.7+) (iltar)
+ * bug #19114 [HttpKernel] Dont close the reponse stream in debug (nicolas-grekas)
+ * bug #19101 [Session] fix PDO transaction aborted under PostgreSQL (Tobion)
+ * bug #18501 [HttpFoundation] changed MERGE queries (hjkl)
+ * bug #19062 [HttpFoundation] Fix UPSERT for PgSql >= 9.5 (nicolas-grekas)
+ * bug #18548 [Form] minor fixes in DateTime transformers (HeahDude)
+ * bug #18732 [PropertyAccess][DX] Enhance exception that say that some methods are missing if they don't (nykopol)
+ * bug #19048 [HttpFoundation] Use UPSERT for sessions stored in PgSql >= 9.5 (nicolas-grekas)
+ * bug #19038 Fix feature detection for IE (Alsciende)
+ * bug #18915 [DependencyInjection] force enabling the external XML entity loaders (xabbuh)
+ * bug #19020 [Form] Fixed collapsed choice attributes (HeahDude)
+ * bug #19028 [Yaml] properly count skipped comment lines (xabbuh)
+ * bug #19009 [WebProfilerBundle] Fix invalid CSS style (romainneutron)
+ * bug #17733 [Yaml] Fix wrong line number when comments are inserted in the middle of a block. (paradajozsef)
+ * bug #18911 Fixed singular of committee (peterrehm)
+ * bug #18971 Do not inject web debug toolbar on attachments (peterrehm)
+
 * 3.0.7 (2016-06-06)
 
  * bug #18908 [DependencyInjection] force enabling the external XML entity loaders (xabbuh)