title: upgrading yii2 advanced from 2.0.6 to 2.0.7 does not work
body: <p>In my project directory I first executed the following two commands</p>
  
  <pre><code>php C:\ProgramData\ComposerSetup\bin\composer.phar self-update
  
  php C:\ProgramData\ComposerSetup\bin\composer.phar global require "fxp/composer-asset-plugin:~1.1.1"
  </code></pre>
  
  <p>But executing the command</p>
  
  <pre><code>composer require yiisoft/yii2 2.0.5
  yields:
  
  Your version of PHP, 5.4.7, is affected by CVE-2013-6420 and cannot safely perform certificate validation, we strongly suggest you upgrade.
  You are running composer with xdebug enabled. This has a major impact on runtime performance. See https://getcomposer.org/xdebug
  ./composer.json has been updated
  Loading composer repositories with package information
  Updating dependencies (including require-dev)
  Your requirements could not be resolved to an installable set of packages.
  
  
  
   Problem 1
      - Installation request for yiisoft/yii2 2.0.7 -&gt; satisfiable by yiisoft/yii2[2.0.7].
  
      - Conclusion: remove bower-asset/jquery.inputmask 3.1.63
      - Conclusion: don't install bower-asset/jquery.inputmask 3.1.63
      - yiisoft/yii2 2.0.7 requires bower-asset/jquery.inputmask ~3.2.2 -&gt; satisfiable by bower-asset/jquery.inputmask[3.2.7, 3.2.6, 3.2.5, 3.2.4, 3.2.3, 3.2.2].
      - Can only install one of: bower-asset/jquery.inputmask[3.1.63, 3.2.7].
      - Can only install one of: bower-asset/jquery.inputmask[3.1.63, 3.2.6].
      - Can only install one of: bower-asset/jquery.inputmask[3.1.63, 3.2.5].
      - Can only install one of: bower-asset/jquery.inputmask[3.1.63, 3.2.4].
      - Can only install one of: bower-asset/jquery.inputmask[3.1.63, 3.2.3].
      - Can only install one of: bower-asset/jquery.inputmask[3.1.63, 3.2.2].
      - Installation request for bower-asset/jquery.inputmask (locked at 3.1.63) -&gt; satisfiable by bower-asset/jquery.inputmask[3.1.63].
  
  
  
  Installation failed, reverting ./composer.json to its original content.
  </code></pre>
  
  <p>Any help?</p>