Bug 685526 - GCLI should allow basic async types; r=dcamp,past,harthur,mratcliffe

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rename : browser/devtools/commandline/test/browser_dbg_cmd.html => browser/devtools/debugger/test/browser_dbg_cmd.html
rename : browser/devtools/commandline/test/browser_dbg_cmd.js => browser/devtools/debugger/test/browser_dbg_cmd.js
rename : browser/devtools/commandline/test/browser_dbg_cmd_break.html => browser/devtools/debugger/test/browser_dbg_cmd_break.html
rename : browser/devtools/commandline/test/browser_dbg_cmd_break.js => browser/devtools/debugger/test/browser_dbg_cmd_break.js