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Update README.mdown
Fixed typos in README
Added basic pull API support to widgets.

This can be invoked via the last_values/since/timespan methods
on the widgets base class, and uses the Ducksboard HTTP Pull
API.
Added Vim swp files to .gitignore
Merge pull request #4 from jshiell/master

Add basic Pull API support
bump version to 0.1.4
update method now uses the PUSH url when calling ducks board servers.
Merge pull request #6 from gabceb/master

Fixed push requests
add change log and bump to 0.1.5
add minitest and other development dependencies, start testing
Fix test task
Add Delta to counter
Add guard
Merge pull request #9 from mattbeedle/delta

Delta
sync with original repo