do not allow to install BC breaking packages

Author: xabbuh

CHANGELOG.md

@@ -1,6 +1,18 @@
 CHANGELOG
 =========
 
+0.1.2
+-----
+
+Do not allow to pull in packages that could potentially break backwards
+compatibility.
+
+0.1.1
+-----
+
+Moved `php-xapi/test-fixtures` package to the `require` section as the package
+is required by other packages that make use of the base test class.
+
 0.1.0
 -----
 

composer.json

@@ -12,8 +12,8 @@
     ],
     "require": {
         "ramsey/uuid": "~2.8",
-        "php-xapi/model": "~0.1",
-        "php-xapi/test-fixtures": "~0.1"
+        "php-xapi/model": "^0.1.0",
+        "php-xapi/test-fixtures": "^0.1.0"
     },
     "conflict": {
         "xabbuh/xapi-storage-api": "*"