This is required when validating a message which could be a string or an
object.

Also include
  * username validation -- no spaces or weird chars
  * no longer base64 encoded sha1-hex hash for CSRF token
  * refresh login page every two hours to keep session active

Spelling, grammar and readability in upgrader documents
  - Tweaked spelling, grammar and wording to make the text of the upgrader
    pages more readable.
Fixed spelling regression
  - Higly —> Highly
Spelling and readability fixes for /include/class.* files
  - Fixed some spelling mistakes
A couple more spelling/readability fixes.
  - More fixes

When creating tickets, ensure that data which should not contain leading or
trailing whitespace is trimmed and validated accordingly

Switch url validation t use parse_url - sufficient for our needs.