always use XMLHttpRequest

current behavior will use XDomainRequest whenever it is available even though the request is not necessarily CORS. this creates a problem when on certain browsers (e.g. ie10) because:
- Access-Control-Allow-Origin header is expected despite the request not being CORS
- XDR does not have an onreadystatechange function (http://msdn.microsoft.com/en-us/library/ie/cc288060(v=vs.85).aspx) and use of its proper callback functions appear to have not yet been implemented
Correcting web services unwrapping code doc
update change log
reference window correctly
scope config stack to m.render call
ensure type option only applies to successful responses
ignore redraw if called without valid controller
don't call removeChild if no parent
test for #129
Merge remote-tracking branch 'upstream/master'
Fixing typo in code example
Undoing a wrong patch
Merge pull request #131 from eddyystop/master

Likely small typo in module docs
update change log
implement keys
Merge pull request #121 from syk0saje/patch-1

always use XMLHttpRequest
clean up keys code
Merge remote-tracking branch 'origin/master' into next
document XDomainRequest breaking change
fix wrongful cache node clearing