[composer] Set dependencies for 1.5.0-rc1 release + lock

composer.json

@@ -30,16 +30,15 @@
         "sensio/generator-bundle": "~2.3",
         "incenteev/composer-parameter-handler": "~2.0",
         "tedivm/stash-bundle": "~0.4",
-        "ezsystems/ezpublish-kernel": "^6.5@beta",
-        "ezsystems/repository-forms": "^1.4@beta",
-        "ezsystems/ezplatform-solr-search-engine": "^1.1@beta",
-        "ezsystems/platform-ui-bundle": "^1.5@beta",
-        "ezsystems/platform-ui-assets-bundle": "@beta",
+        "ezsystems/ezpublish-kernel": "^6.5@rc",
+        "ezsystems/repository-forms": "^1.4@rc",
+        "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": "^1.5beta",
+        "ezsystems/studio-ui-bundle": "^1.5@rc",
         "ezsystems/ezstudio-notifications": "^1.2",
-        "ezsystems/landing-page-fieldtype-bundle": "^1.5@beta",
-        "ezsystems/flex-workflow": "^1.5@beta",
+        "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",