Add slugSafeString and getEncodePath
Better sanitize values of NavItem object
Sanitize external link
Rename function
Encode action url
Remove portable utf8 lib
Merge branch 'refs/heads/master' into multibyte-path
Add trim to slugSafeString
Add PAGE_PATH_SEGMENT_MAX_LENGTH limit for slugSafeString
Merge branch 'multibyte-path' of https://github.com/hissy/concrete5-5.7.0 into hissy-multibyte-path