Add a simple script to play a timestream.
Add pot derandomisation.

* Requires two input timestreams (chamber left & right) and a CSV file for randomised plant info.
* Currently CSV provides fields Name and Tray as the plant name and corresponding pot position (e.g. 01B4). This position is converted by the script itself to PotID (from 1 to 320) in dual chamber layout.
* Outputs a timestream containing synthetic images where the cropped images of each plant and its replicates are group into a 3x1 column. The number of rows can be increased if the maxium number of replicates is larger. The synthetic image is maintained at 16:9 aspect ratio for visualisation on screen.
* Currently each plant image is a 250x250px region around the center of the detected pot position. As there is a misalignment in pot detection, the actual center of the plant should be used whenever available.
* Currently derandomisation code is kept in timestreamCLI until a better integration comes up.
Fix error when zipping two timestream iterators.

* itertool.izip seems to be the right function. So avoid using plain zip()
* set the date range to be the time in common between the two timestreams.
Fix color channel order
Fix time interval input
Derandomise two chambers with both left and right. Not tested yet!
* Each plant has two columns of 3 rows. Left column for first chamber and second column for second chamber
* Will need option to select certain plants to be processed accross the chambers.
First success test for multi-chamber derandomisation. Fix image size.
Fix error in pot position and different time intervals
Add script to copy glasshouse images into timestream-like folders
Merge branch 'master' of github.com:chuong/timestreamCLI
Improve options for date and time ranges
Fix timestream path, e.g. include folder of hour
Add an option to write all images to a folder (not in timestream format)
Initial commit of pipeline for glass house data. Just correct distortion for now
Allow to play timestream by files
Fix error on existing but empty output timestream folder
add 'configFile' to data dict
rename format json to expt json, that's what it is
update test images
Update test data again