CRM-13279 Adding filters for Age, Age at Event and Birth Date. Also adding jQuery in the report template to expose a valid range of dates for birth date filter.

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* CRM-13279: Include gender and date of birth in (participant) reports
  http://issues.civicrm.org/jira/browse/CRM-13279
Merge pull request #1727 from davecivicrm/CRM-13279a

CRM-13279 Adding filters for Age, Age at Event and Birth Date. Also addi...