Revert "[skip ci] wip for savon debugging"

This reverts commit 78f47eb2c365debed905a21564f44e72b63ed5d4.
Revert "WIP for using savon"

This reverts commit 52838eee818d72077966cf2dd120d6805047a965.
Fix get_letter_status specs
Add rspec profiling to report slowest specs
Fix more specs