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Merge pull request #16 from LitleCo/dev

Batch Processing
Making more robust file retrieval
Changed functional test for test_litlerequest : removed test for sendToLitleSFTP() since it is already covered in sendToLitle()

Changed method retrieveFromSFTP() : reset connection after 3 minutes instead of 15 seconds
made retriveFromlitleSFTP more robust
now deleting the response file from sftp outbound
refactored retriveFromLitleSFTP() method
cleaning the code intoduces two methods createSFTPSession and downloadFromLitleSFTP
removed 2 lines of dead code
added a missing return statement
debugging LitleRequest
debugging
debugging again
removed unnneccessary return from sendToLitleSFTP
debug point
using str_replace now
code clean up phase 1
cleaned the code...removed all print lines to debug the code
removing unnecessary creation of SFTP connections
minor bug fix