Commons # remove build.properties from build.xml

git-svn-id: http://source/svn/php_commons/branches/php_commons-4-github@1973 e588dd84-e1f6-4f18-b586-b92c208bf0ea
Commons # fix null index array access in set container

git-svn-id: http://source/svn/php_commons/branches/php_commons-4-github@1974 e588dd84-e1f6-4f18-b586-b92c208bf0ea
Commons # array access in traversable container

git-svn-id: http://source/svn/php_commons/branches/php_commons-4-github@1975 e588dd84-e1f6-4f18-b586-b92c208bf0ea
Commons # xml improvements

git-svn-id: http://source/svn/php_commons/branches/php_commons-4-github@1976 e588dd84-e1f6-4f18-b586-b92c208bf0ea
Merge branch 'master' of ../php_commons-4-github