[composer] set dependencies for 1.4.0@rc 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": "^6.4@beta",
-        "ezsystems/repository-forms": "^1.3@beta",
-        "ezsystems/ezplatform-solr-search-engine": "~1.0@rc",
-        "ezsystems/platform-ui-bundle": "^1.4@beta",
+        "ezsystems/ezpublish-kernel": "^6.4@rc",
+        "ezsystems/repository-forms": "^1.3@rc",
+        "ezsystems/ezplatform-solr-search-engine": "^1.0@rc",
+        "ezsystems/platform-ui-bundle": "^1.4@rc",
         "ezsystems/ez-support-tools": "~0.1.0",
-        "ezsystems/studio-ui-bundle": "^1.4@beta",
-        "ezsystems/ezstudio-notifications": "^1.1@beta",
-        "ezsystems/landing-page-fieldtype-bundle": "^1.4@beta",
-        "ezsystems/flex-workflow": "^1.3@beta",
+        "ezsystems/studio-ui-bundle": "^1.4@rc",
+        "ezsystems/ezstudio-notifications": "^1.2@rc",
+        "ezsystems/landing-page-fieldtype-bundle": "^1.4@rc",
+        "ezsystems/flex-workflow": "^1.4@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": "^1.0@beta"
+        "ezsystems/ezstudio-installer": "^1.1@rc"
     },
     "require-dev": {
         "behat/behat": "~3.0",