Add validation for UUIDs.
Add keyExistsNotEmpty
Rename keyExistsNotEmpty to notEmptyKey
Rename method in README
Merge pull request #35 from mazzzd/keyExistsNotEmpty

Add keyExistsNotEmpty
Implement Assertion::all* helper
Document `Assertion::nullOr*` and `Assertion::all*`
Merge pull request #37 from asm89/add-all-support

Add all support
Magic method throws if argument not set
Merge pull request #38 from asm89/patch

Magic method throws if argument not set
Added Assertion::float()
Add assertion for count of countable
Merge pull request #41 from fritsjanb/assert_count

Added Assertion::count()
Let's test on 5.5 too
Merge pull request #42 from asm89/patch-1

Let's test on 5.5 too
Add Assertion::count test for \Countable
Merge pull request #43 from fritsjanb/assert_countable_test

Add Assertion::count test for \Countable
added test for floats
Enable hhvm testing for Assert.
Merge pull request #40 from holtkamp/patch-1

Added Assertion::float()