joomlatools/joomla-composer — pull request #2 by ienev (2014-01-12 11:38:24+00:00)
Title: Proposed fix for extension installation issues on Joomla! 3.x.x

Some system plugins in Joomla! 3.x.x use methods of JApplicationWeb and JApplicationCms which are not defined in \Joomlatools\Composer\Application. The result is that the installation fails when trying to install extensions.