Bug 1035693 - [Loop][CallLog] Add 'long-press' actions to the items in t...

...he call log. r=jaoo,ferjm
In general, comments should describe not obvious stuff :). I prefer one big comment describing a chunk of code that small comments describing single line steps. It is quite obvious that `options.show()` where `options` is a `OptionMenu` will `Show the options menu`.