Affected tests: inline-block tests: block-flow-direction-01[1-6],
line-box-direction-01[1-6]; and float tests:
block-flow-direction-00[5-8], line-box-direction-00[5-8]

1- float: [left | right] has been added in the title; see
http://lists.w3.org/Archives/Public/public-css-testsuite/2014Dec/0011.html

2- block-flow-direction-007: since shrink-to-fit width algorithm
apply to height in vertical writing-mode, then there is no need to
specify height in some of the float tests, in particular this
block-flow-direction-007 test. I may need to do this in other
tests as well.

3- It's better to apply 'background-color: black' and
'border-top: black solid 1em' on block containers (wrappers) than
on their inner blocks; this allows code to be more compact

4- 'vertical-align: top' has been applied on several tests along with
/* comments */ pointing to the email explaining why; see
http://lists.w3.org/Archives/Public/public-css-testsuite/2014Dec/0013.html

5- some inline-block tests did not have a wrapping div around the
inline-block: for consistency reasons, a wrapping div around
tested inline-block in related has now been added