Initial version of Twilio with App Engine Support.
Use preg_replace_callback rather than the /e option, which is not supported on GAE.
Cleanup the URL fetch HTTP class.
Create a HTTP streams based twilio client.
Create a HTTP streams based twilio client.
Add back the ability to specify a http client as part of the ctor.
return 'static' object in _call method

sometimes I want to override __call method for some reason. For example I always want to call say method with language option "'language' => 'ja-jp');".
Initial version of Twilio with App Engine Support.
Use preg_replace_callback rather than the /e option, which is not supported on GAE.
Cleanup the URL fetch HTTP class.
Create a HTTP streams based twilio client.
Create a HTTP streams based twilio client.
Add back the ability to specify a http client as part of the ctor.
Add back the ability to specify a http client as part of the ctor.
Merge remote-tracking branch 'origin/master'

Conflicts:
	Services/Twilio.php
adding sjlangley's Streams implementation
merged in sjlangley's fixes

https://github.com/sjlangley/twilio-php/commit/814ce39508808d9a1edd66221
4466ac13380022b
Merge pull request #126 from caseysoftware/sjlangley_master

Merging SJLangley's fixes
incremented the user agent version

Incremented the user agent as Pull Request #126 completely removes the
curl dependency. Now instead of getting an error if curl isn't
installed, the library will fall back to PHP's Streams which should
always work.