fixes #644 - better handling of deleted page objects
Update documentation with correct examples for fill methods

The examples for both `fillSelectors` and `fillXPath` referenced calls
to `fill`.  This commit corrects both examples.
Update docs for dotNET application

Deprecate batch file
Update installation docs for dotNET app

Show that the .NET Framework is only a prerequisite for `casperjs.exe`
Added better logging of steps where non-anonymous functions are used.
Merge branch 'master' of git://github.com/n1k0/casperjs