Update README.md
Update exportMetaData.R
Update exportMetaData.R
Add RCurl check

Avoid the "GnuTLS recv error (-9)" error.  When `redcapAPI` sees this error, it will resort to RCurl to get the meta data
include postForm

import RCurl::postForm to avoid the GnuTLS recv error.
Update DESCRIPTION
Create apiCall

Function to automatically make the decision to use RCurl when the GnuTLS recv error is produced.
Update exportMetaData.R

implements `apiCall`
Update exportRecords.R

implement `apiCall`
Create apiCall.Rd
Update DESCRIPTION

Update version number
Update CITATION
Update CITATION
Rename apiCall to apiCall.R
Update apiCall.R
Update exportMetaData.R
Update apiCall.R
Remove calculated fields from data
Update importRecords.R
Update importRecords.R