improved badge and popup menu

possible to add option of whether to show scripts run in the top level window or all of them in each tab

Signed-off-by: Gerald <gera2ld@163.com>
added font-awesome for popup menus

Signed-off-by: Gerald <gera2ld@163.com>
updated styles, rewritten with lesscss

Signed-off-by: Gerald <gera2ld@163.com>
updated CodeMirror files

Signed-off-by: Gerald <gera2ld@163.com>
updated styles

Signed-off-by: Gerald <gera2ld@163.com>
added support for special headers of XHR: User-Agent

Signed-off-by: Gerald <gera2ld@163.com>
redesigned GM_xmlhttpRequest, added finalUrl support, fixed #10

Signed-off-by: Gerald <gera2ld@163.com>