Add Security csrf_autolaod_methods config.
Fixed errors in SimpleAuth Login
Merge pull request #515 from indigofeather/1.6/develop

Fixed errors in SimpleAuth Login
Merge pull request #514 from takyam-git/feature/security/csrf_autoload_fix/core_pull_request_1342

Add Security csrf_autolaod_methods config.
Updated security class docs
Adds warning about modifying temporal objects fetched though find_revision
Updates soft delete and temporal to reflect default timestamp format change
Merge pull request #516 from stevewest/1.6/develop

Adds warning about modifying temporal object revisions
Fix typo in packages/parser/intro.html
Merge pull request #517 from ryanoreilly/1.6/develop

Fix typo in packages/parser/intro.html
remove ;
Merge pull request #519 from Apathetic012/1.6/develop-patch1

remove extra ;
Add valid_date
Added descriptions of inactive first/last and markers template items
Merge pull request #522 from hackoh/1.6/add_validation_date

Add valid_date
Merge pull request #523 from SCIF/1.6/develop

Added descriptions of inactive first/last and markers template items
Fixed example for Asset::get_file, as described in issue #513
Merge pull request #524 from knitinr/1.6/develop

Fixed example for Asset::get_file, as described in issue #513
Added  option to Email_Driver::attach
Fixed Email_Driver::attach  param