Minor typo

changed --struct to --strict
providing an example command line
oops, indentation problem...
Trying to get formatting correct...
same fixes for site as well
Added support for exclude patterns from pmd.

Added support for ignoring files via the exclude-pattern element in a
ruleset.
Fixed file name handling in RuleSetFactory::getIgnorePattern, updated tests
Removed use of short array syntax.
Fix [Naming]: Trait can have method same as trait's name
UnusedFormalParameter does not apply to compact() prefixed with a namespace

Also added tests for this. Their created in an old fashion - exactly as previous tests regarding compact() function
UnusedLocalVariable doest not applyt to compact() prefixed with a namespace
fixed tests - some of them din't use namespace
Added PHP 5.6 and HHVM to travis.yml
Allow a single underscore at the beginning

Fixes https://github.com/phpmd/phpmd/issues/113
Show releases on the startpage
Merge branch 'fix-namespaced-compact' of https://github.com/radmen/phpmd into radmen-fix-namespaced-compact
Merge branch 'radmen-fix-namespaced-compact'
Refs #150 - Changes documented.
Merge branch 'patch-1' of https://github.com/Nyholm/phpmd into GH154-Nyholm-php5.6-hhvm
Merge branch 'GH154-Nyholm-php5.6-hhvm'