[TASK] Conformity to metrics.typo3.org

Conformity is only done as far as possible, i.e. ext_emconf.php still
does not conform to CGLs used by metrics.typo3.org.
[BUGFIX] Fix hyphenate.preserveHtmlTags in stdWrap.

The value of hyphenate.preserveHtmlTags now means "true" if it is set
to "1", and "false" otherwise. Before this it meant "false" if set to
"0" and "true" otherwise.
[TASK][BUGFIX] Documentation improvement and fixes.

Only typos and more details.
[BUGFIX] Update version requirements.

Some version requirements were unreasonable:

* Fluid and extbase had a minimum version 1.3.0, but the extension
  requires at least TYPO3 6.0.0, which ships with fluid and extbase
  in version 6.0.0.
* The minimal PHP version is increased to 5.3.7, the same as TYPO3
  6.0.0
[TASK] Increased version to 1.0.1 for release.