Bug 979030 - Fix srcdir loader breakage after GCLI split up; r=mratcliffe

--HG--
rename : toolkit/devtools/gcli/source/mozilla/gcli/mozui/completer.js => toolkit/devtools/gcli/source/lib/gcli/mozui/completer.js
rename : toolkit/devtools/gcli/source/mozilla/gcli/mozui/ffdisplay.js => toolkit/devtools/gcli/source/lib/gcli/mozui/ffdisplay.js
rename : toolkit/devtools/gcli/source/mozilla/gcli/mozui/inputter.js => toolkit/devtools/gcli/source/lib/gcli/mozui/inputter.js
rename : toolkit/devtools/gcli/source/mozilla/gcli/mozui/tooltip.js => toolkit/devtools/gcli/source/lib/gcli/mozui/tooltip.js