FIxes #5695: adapt relay server scripts to have dynamic groups
Fixes #5710: Add migration scripts and required properties during migration to 3.0
Merge pull request #513 from Kegeruneku/bug_5710/int/5710_add_3_0_migration_elements

Fixes #5710: Add migration scripts and required properties during migrat...
Fixes #4650: don't duplicate headers with Rudder agent
Merge pull request #501 from ncharles/bug_4650/int/duplicate_header

Fixes #4650: don't duplicate headers with Rudder agent
Fixes #5719: add support for large int on ansi systems
Merge pull request #514 from ncharles/bug_5719/int/fatal_error_on_irange

Fixes #5719: add support for large int on ansi systems
Fixes #5724: don't duplicate text blocks when inserting - refs #4650
Merge pull request #516 from ncharles/bug_5724/int/dont-duplicate-text-block

Fixes #5724: don't duplicate text blocks when inserting - refs #4650
Merging 2.10 into 2.11
Merge pull request #509 from VinceMacBuche/bug_5695/update_script_node_relay

FIxes #5695: adapt relay server scripts to have dynamic groups
Merge branch 'branches/rudder/2.10' into branches/rudder/2.11
Merge branch 'branches/rudder/2.11' into branches/rudder/3.0