Revert "Small bug fix"
Merge pull request #85 from bitpay/revert-84-ContainerUpdates

Revert "Small bug fix" because it broke build
PHP Unit 4.3 breaks tests

The MockObject code changed in PHP Unit 4.3:

1) Bitpay\Client\ClientTest::testCreateInvoiceWithError
Argument 1 passed to PHPUnit_Framework_MockObject_Builder_InvocationMocker::will() must implement interface PHPUnit_Framework_MockObject_Stub, string given, called in /home/travis/build/bitpay/php-bitpay-client/tests/Bitpay/Client/ClientTest.php on line 133 and defined
/home/travis/build/bitpay/php-bitpay-client/tests/Bitpay/Client/ClientTest.php:133
Update composer.json
Fix for expected private key length

Range will probably be 72 < x < 78
Un-reverting Joshua's bugfix since

the broken build was due to the latest version of PHP Unit 4.3.x breaking things on us.
Added new PEM encoding and decoding functions. Also
added two corresponding tests.
Fixed pemDecode scope.
Extra space fixes for PSR.
Fixed misspelled function name.

If I could learn how to type that'd be great...