Fix invalid use of open()
add option to specify minimum interval for accepting RA or DHCP updates.

This was fixed to 60s. Add '-m <seconds>' option to change default time.
Merge pull request #18 from kaspar030/rebase

add option to specify minimum interval for accepting RA or DHCP updates.
Set default for min-update-interval to 30
ra: don't set nd_ra_{reachable,retransmit} to 0
fix integer overflow after 50 days (thx Hauke Mehrtens)
Fix HMAC-MD5 verify in reconfigure
Fix building with clang 3.4
Stop rebinding when all IAs are lost
Add initial support for CER-ID
Don't disable looping (meh)
Correctly clear CER
Add user-class option in help text and minor clean up
Merge pull request #19 from dedeckeh/bugfixes

Add user-class option in help text and minor clean up
Revert "Revert to old behaviour regarding information requests"

This reverts commit c98181c4a48c57e405effd1dc9046aaaee6d480f.
Fix fallout
Initial support for MAP & LW4O6 provisioning
Ignore multiple MAP-E instances for now and output DMR / BR for every rule
pulled new version and merged