Don't require the stack module to find the last value cache
Refactor stopwatch class
Correct Statistic prototype
Make LastValueCache take a /const/ array of stat names
Stats bug fixes
Cope with a statistic being passed a NULL LVC (useful in UTs)
Add comment about allowing NULL LVcs
Remove pjsip include from lvc
Make load monitor methods virtual to allow for mocking
Move interposers to cpp-common
Add Acct-Interim-Interval to the AVPs list
Make val_json() easier to use
Merge pull request #16 from Metaswitch/acct-interim-interval

[Reviewer: Andy] Add Acct-Interim-Interval to the AVPs list
Merge pull request #17 from Metaswitch/better-val_json

Reviewer Rob - Make val_json() easier to use
fix up HTTP stack for IPv6
Merge remote-tracking branch 'origin/master' into stats_refactor
Markups
Merge pull request #19 from Metaswitch/stats_refactor

[Reviewer: Matt][From: Alex] Refactor stats/stopwatch code to make it possible to integrate with homestead.
Add code changes to track rwquest latencies and penalties in the HTTP and diameter stacks (was previously developed as part of homestead)
Merge pull request #18 from Metaswitch/ipv6_harder

[Reviewer: Matt] Automated installation of IPv6 on AIO nodes.