Update draft-ietf-pce-stateful-pce-05.xml

Added State Timeout interval
Renamed Delegation Timeout Interval -> Redelegation Timeout Interval
Added verbage on mechanics of both
Applicability draft
Revert "Applicability draft"

This reverts commit 00924a21ea6e58bb2a079dd6dfb74f4bd413da8a.
Changes for version 05

- multiple path support
- ability to resync state
- terminology cleanup
- state timeout/redelegation cleanup
- handling pce failure
- cleanup the operational state bits
- clarifications around mbb
extensions for support of non-rsvp type

Identify the LSP type, errors for mismatched/wrong lsp type, etc. The
changes in this version were discussed with Jan.
Also remove the tunnel-id tlv (dead)
Final text for 05

Includes the beautification of the xml from Jan, and changes for making
the draft generic for different types of LSPs (RSVP, SR, etc)
Merge branch 'edc_delegation_timeout'