bump to 0.5.2
merge 0.5.2-dev changes into master
start new dev branch cycle
add a very basic authorisation scheme, see #35
start on new reprocessing briq
coffeescript mistake
reprocess briq now parses and generates events
add info about installing on Windows
aggregate reprocessed log results and store in archive

this is a very nasty hack, since several briqs all need to be aware of
the "second processing data path" needed for this - should be replaced
by less tightly-connected modules, so decoding and aggragation can be
done for old as well as new data, without the briqs having to know
about all this
fix reprocessing timestamps and keys
cleanup
cleanup
make underscore require's explicit i.s.o. a "_" global
remove obsolete dependency on ss-console
mention RPi and weblog post on readme page
update to latest dependencies
add dependency check icon
Update roomNode.coffee to handle negative numbers

Correct 'decode' so that negative temperatures are converted correctly.  Also added comment re temperature range supported by roomNode sketch.
Merge pull request #61 from jgc/patch-1

Update roomNode.coffee to handle negative numbers
merge fix from #61