geshifilter 7.x-1.2

Changelog

• Issue #1148540: GeSHi Filter will not detect GeSHi library: updated installation instructions in README.txt to libraries support only (also see 79729a16)
• Issue #1887344: Don't require dev version of Libraries 2.x: Don't require dev version of Libraries 2.x, 2.0 is already available
• Issue #1900484: Changing start number does not avoid cached copy of previously syled code content: Changing start number does not avoid cached copy of previously syled code content
• Fixed XSS issue with GeSHi field description. No Security Advisory necessary because exploit requires "Administer content types" permissions (see http://drupal.org/security-advisory-policy)