Log Message:
Update typo3_45 package to 4.5.20.

pkgsrc change: supports PHP < 5.6.

Fix security problem:

* TYPO3-CORE-SA-2015-001: Authentication Bypass in TYPO3 CMS 4.5
http://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2015-001/

2015-02-19  1b8a673                  [RELEASE] Release of TYPO3 4.5.40 (TYPO3 \ 
Release Team)
2015-02-19  3fbd91c  #65113          [SECURITY] Prevent login with semi-empty \ 
values (Nicole Cordes)
2015-01-29  6cf78f6  #64597          [TASK] Update TYPO3 copyright in all \ 
branches (Benjamin Mack)
2015-01-29  38e1cb1  #64573          [BUGFIX] Travis tests for PHP 5.5 (Stephan \ 
Großberndt)
2015-01-19  fc33980                  [TASK] Post travis notification to \ 
#typo3-cms-coredev channel (Helmut Hummel)
2015-01-15  c7615b6  #63896          [BUGFIX] Fix regression in \ 
prefixLocalAchors feature (Helmut Hummel)
2014-12-17  583d1bf  #59186          [BUGFIX] Add case insensitive flag to \ 
trustedHostsPattern (Dietrich Heise)