CRM-14117 - Help/About leads to a non-existant page

http://issues.civicrm.org/jira/browse/CRM-14117
Merge pull request #2403 from dlobo/CRM-14117

CRM-14117 - Help/About leads to a non-existant page
CRM-14119 This includes https://github.com/civicrm/civicrm-core/pull/2400 and adds truncation of Details column display with conditional (more) link as we do with Notes selector.

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* CRM-14119: Add activity details as field / filter on activity details report
  http://issues.civicrm.org/jira/browse/CRM-14119
Merge pull request #2404 from davecivicrm/CRM-14119

CRM-14119 This includes https://github.com/civicrm/civicrm-core/pull/240...