Changelog:
Delete old xterm view.
Move requirejs from plugin Orion to the plugin RequireJs.
Create new plugin with xterm.js.
Mavenize xterm.js build, use for build gulp tasks instead of bash scripts.
Rework GWT code for integration xterm.js.
Fix css styles for integration with GWT css resources and using Eclipse CHE white and dark themes.
Rework terminal resize mechanizm.
Signed-off-by: Aleksandr Andrienko <aandrienko@codenvy.com>
Roman Iuvshin