Revert "Permit dev-master for required WP-CLI packages"

This reverts commit 4455b37.

Author: danielbachhuber

composer.json

@@ -31,16 +31,16 @@
 		"symfony/process": "~2.1",
 		"symfony/translation": "~2.7",
 		"composer/composer": "^1.2.0",
-		"wp-cli/cron-command": "dev-master || ^1.0",
-		"wp-cli/import-command": "dev-master || ^1.0",
-		"wp-cli/db-command": "dev-master || ^1.0",
-		"wp-cli/media-command": "dev-master || ^1.0",
-		"wp-cli/export-command": "dev-master || ^1.0",
-		"wp-cli/package-command": "dev-master || ^1.0",
-		"wp-cli/search-replace-command": "dev-master || ^1.0",
-		"wp-cli/server-command": "dev-master || ^1.0",
-		"wp-cli/shell-command": "dev-master || ^1.0",
-		"wp-cli/eval-command": "dev-master || ^1.0"
+		"wp-cli/cron-command": "^1.0",
+		"wp-cli/import-command": "^1.0",
+		"wp-cli/db-command": "^1.0",
+		"wp-cli/media-command": "^1.0",
+		"wp-cli/export-command": "^1.0",
+		"wp-cli/package-command": "^1.0",
+		"wp-cli/search-replace-command": "^1.0",
+		"wp-cli/server-command": "^1.0",
+		"wp-cli/shell-command": "^1.0",
+		"wp-cli/eval-command": "^1.0"
 	},
 	"require-dev": {
 		"phpunit/phpunit": "3.7.*",