1.6 header in ChangeLog.
ChangeLog for NamedTemporaryFile fix.
add a logging timestamp, and per-connection info
remove failed connections from proxy_pairs as well
- this is a pretty major fix, as the previous behaviour effectively disabled a proxy after 5 failed connections (= max_num_proxy_pairs / 2)
use CONNECTIONS_PER_CLIENT and MAX_NUM_CLIENTS instead of a single MAX_NUM_PROXY_PAIRS
- the previous behaviour was misleading, max_clients was effectively half what the user specified
add ChangLog entry for the browser proxy bugfix
Use 5 flashproxy bridge lines.

flashproxy-client seeks to maintain 5 connected proxies (it re-registers
if there are fewer). It makes sense for tor to know that there is more
than one proxy behind the pluggable transport, so that in case your
first proxy is dodgy or slow, you can try another one.

Some testing in https://trac.torproject.org/projects/tor/ticket/10429#comment:2
shows an increased success rate of 95% with 5 bridge lines (versus 90%
for 1 bridge line) in downloads spaced 10 minutes apart.