* Make "--verbose" optional based on ONEDRIVE_VERBOSE environment variable. Verbose will continue to be the default if ONEDRIVE_VERBOSE is set to *anything* other than 0 (zero), or if it's not set at all.
* Fix handling of 5xx responses from OneDrive when performing a session upload
* Switch to same checks when doing non session upload so that OneDrive exceptions are thrown correctly
* Remove a 'throw e' when curl times out
* Remove a needless 'throw e' when a session upload cannot be found
* Set the upload failed flag when OneDrive errors on session uploads
* Add additional JSON object validation for queries made against OneDrive where a JSON response is expected and where that response is to be used and expected to be valid
* Remove 'else throw e' which causes the application to exit / crash and replace with what the actual error message is from OneDrive
* Make logging of unhandled errors consistent
* Add extra error handling when uploading files for errors received from OneDrive or file system errors
* Flag that the upload failed if there is an exception error raised
* Update logging output for when an error occurs to indicate that the file was skipped
* Log the OneDrive response as log.vlog rather than log.error as it is now being handled correctly
* Throw an exception for 50x errors so that it gets caught correctly
* Clean up logging when exception is generated
* Catch a 403 Forbidden exception when attempting to query for an Office 365 Shared Library Name
* Validate that the returned response is a valid JSON object
* Update scopes as per https://github.com/OneDrive/onedrive-api-docs/issues/1119
* Update that if a 403 error is received, what is the right course of action to take
* Without this throw, uploadLastModifiedTime fails to catch that the 412 error was returned, thus, the retry with a null cTag / eTag is not performed which leads to 'OneDrive response missing required 'id' element' being generated.
* Fix 'Unexpected character '<'. (Line 1:1)' when OneDrive has an exception error
* Validate that the response from OneDrive is a valid JSON object
* Update Sharepoint Document Library handling for .txt & .csv files
* Use replace function for modified Sharepoint Document Library files rather than delete and upload as new file, preserving file history
* Add explicit check for hashes to be returned in cases where OneDrive API fails to provide them despite requested to do so
* Add comparison with sha1 if OneDrive provides that rather than quickXor
* Update logging output for better clarity
* Update logging output from vdebug -> error for errors
* Remove restrictive checks on fileDetails - if missing, continue, not return
* Add debug lines for if / when this is missing
* If query for file details or file object generates an error, we return, but we also need to flag that downloadFailed = true so that item is not added to the database which may cause validation issues leading to thinking that the file was downloaded but then deleted
* Update fix for #555 as try | catch block for session creation appears to miss error response codes
* Update how JSONValue object is determined to be valid
* Add error logging when response is not a valid JSON object
* Check if the file that was downloaded to local disk equals the reported size & reported hash of the file on OneDrive. If sizes do not match, report an error and remove the local file as it is most likely corrupt.
* Add a try block when attempting to create the upload session and handle if there is an error response from OneDrive
* Should return a JSONValue regardless of error