[BUGFIX] WhiteSpace.AssignmentArithmeticAndComparisonSpace sniff complains about ternary operator with negative number

The following code segment …

$precedenceForNotEquals = ($precedenceA < $precedenceB ? -1 : 1);
creates the following warning:

Whitespace must be added after the arithmetic operator. Found " | | -1". Expected " - 1"

Resolves: #55605
Releases: 1.0.0
ValidVariableNameSniff.php raises Deprecation Error in PHP 5.5

In Sniffs/NamingConventions/ValidVariableNameSniff.php there is
a preg_replace with switch /e as callback.

In PHP 5.5 this is deprecated and should get replaced with
preg_replace_callback. The following change fixes this.

Resolves: #15
Release: 1.0.0
Stick on the CGL of TYPO3 and change null to NULL
Add first version of an ANT build script to the repo.

$ ant lint
$ ant phpunit
$ ant phpunit
$ ant          // running all targets
Merge branch 'develop'

Conflicts:
	Tests/WhiteSpace/AssignmentArithmeticAndComparisonSpaceUnitTest.inc
Merge latest changes from develop branch to make master master again