Merge pull request #191 from elliotchance/release/1.3.3

Release/1.3.3
testReturnPropertyReturnsPHPCode
testAReturnPropertyCanBeSet
Update wiki
testPHPUnitDiffsAreShownOnlyIfAvailable
Merge pull request #195 from elliotchance/1.3.4/195-renderissue-getdiff-bug

RenderIssue getDiff() bug
Update wiki
testWithParameterCanAcceptAnything
testMatchingZeroArgumentsReturnsTrue
testMatchingArraysOfDifferentSizesReturnsFalse
testMatchingWithOneValueThatIsDifferentReturnsFalse
testMatchingIsNotExact
testMatchingMoreThanOneItemWhereOnlyOneIsDifferentReturnsFalse
testExpectedIsAllowedToContainAnythingConstant
testWithParameterCanAcceptAnythingElse
testRenderAnythingConstant
testAnythingIsRenderedCorrectly
Update wiki
Merge pull request #196 from elliotchance/release/1.3.4

Release/1.3.4
testAnExceptionIsThrownIfPropertyDoesNotExistAtRuntime