Clean up date and timezone handling. We used to pass changelog dates around as a "unixtime timezone" string containing a pair of encoded ints. Now, they get passed around as a (unixtime, timezone) tuple of numbers, which makes much more sense.

     1

diff -r 3903775176ed b

     2

--- /dev/null

     3

+++ b/b

     4

@@ -0,0 +1,1 @@

     5

+123

     6

diff -r 3903775176ed b

     7

--- /dev/null

     8

+++ b/b

     9

@@ -0,0 +1,1 @@

    10

+123