Bug 825150 - Remove const_casts by adding some const-ness to nsICommandLineRunner.init().  r=karlt, sr=bsmedberg.

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extra : rebase_source : 3b68c3467fa533442cdc5bcefdf7fbe6140e87a3
Bug 825107 - Fix -Wint-to-pointer-cast warnings in nsTraceRefcntImpl.cpp.  r=bsmedberg.

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extra : rebase_source : d0e2cdd3bd7caf3bf2e68d2210bd5dde040a798b
Bug 825807 (part 1) - Remove unused nsNetworkManagerListener::mManageIOService field.  r=bz.
Bug 825807 (part 2) - Improve the style of nsNetworkManagerListener.{h,cpp}.  r=bz.