https://issues.shibboleth.net/jira/browse/CPPOST-90
Change license header, remove stale pkg files.
Reducing header overuse, non-inlining selected methods (CPPOST-35).
Enforce single appearance of certain conditions.
Fixes to constants, allow sequences of condition rules, new policy rule for DelegationRestriction.
Add XML objects for DelegationRestriction and EntityAttributes extensions.
Xerces 3 revisions.
https://issues.shibboleth.net/jira/browse/SSPCPP-126
Update copyright.
Refined ElementProxy/ElementExtensible interfaces to match Java.
Removed unnecessary class from string literals.
Removed ChildlessElement class references, ensure ComplexElement gets copied during cloning.
ReplayCache, some decoder work, and merged schema validators into one suite.
Reworked int/bool attribute handling.
Added ValidatorSuite around groups of static validators.
First metadata check-in, misc. fixes.
Initial decryption and schema support for encrypted SAML.
Renamed 2.0 source files to fix automake collision.