[composer] Set dependencies for 1.5.1-rc1 release + lock

composer.json

@@ -30,21 +30,21 @@
         "sensio/generator-bundle": "~2.3",
         "incenteev/composer-parameter-handler": "~2.0",
         "tedivm/stash-bundle": "~0.4",
-        "ezsystems/ezpublish-kernel": "^6.5@dev",
-        "ezsystems/repository-forms": "^1.4@dev",
-        "ezsystems/ezplatform-solr-search-engine": "^1.1@dev",
-        "ezsystems/platform-ui-bundle": "^1.5@dev",
-        "ezsystems/ez-support-tools": "~0.1.0@dev",
-        "ezsystems/studio-ui-bundle": "^1.5@dev",
-        "ezsystems/ezstudio-notifications": "^1.2@dev",
-        "ezsystems/landing-page-fieldtype-bundle": "^1.5@dev",
-        "ezsystems/flex-workflow": "^1.5@dev",
+        "ezsystems/ezpublish-kernel": "~6.5.0@rc",
+        "ezsystems/repository-forms": "^1.4",
+        "ezsystems/ezplatform-solr-search-engine": "^1.1@rc",
+        "ezsystems/platform-ui-bundle": "^1.5@rc",
+        "ezsystems/ez-support-tools": "~0.1.0",
+        "ezsystems/studio-ui-bundle": "^1.5@rc",
+        "ezsystems/ezstudio-notifications": "^1.2",
+        "ezsystems/landing-page-fieldtype-bundle": "^1.5@rc",
+        "ezsystems/flex-workflow": "^1.5@rc",
         "egulias/listeners-debug-command-bundle": "~1.9",
         "hautelook/templated-uri-bundle": "~1.0 | ~2.0",
         "doctrine/doctrine-bundle": "~1.3",
         "symfony/expression-language": "~2.4",
         "sensio/framework-extra-bundle": "~3.0",
-        "ezsystems/ezstudio-installer": "^1.2@dev"
+        "ezsystems/ezstudio-installer": "~1.2.0@rc"
     },
     "require-dev": {
         "behat/behat": "~3.0",