Merge branch 'release/1.7.2' into dev
fix tabulation bugs with TTY_COLS and issue when tabulating result with
single field
update some comments
add tabulation of lists; fix issue with sending GET parameters in
requests.
fix issue when requesting limit=1 for api resources
add tutorial command with draft content
use new travis container infrastructure
Bump version: 1.7.2 → 1.7.3
Merge branch 'release/1.7.3'