Added URLencoder/output format options to cqapi

* -f encode input (stdin) into URL encoding output
* -F 0 format input (stdin) into space-aligned columns
* -F 1 format input (stdin) into tab-aligned columns
CQM-116 Skeleton of cqjcr for bugfixing
CQM-116 Almost full version of cqjcr

* Missing full validation
* Missing some OK message
* Missing examples
CQM-116 Validation/usage messages. Added deletion

* Added machine-friendly output
* Added validation for all switches
* Added usage messages
* Added delete option for JCR path
Shellcheck fixes to cqjcr. Replaced sed -r with ${SEDX}
Replaced echo with printf & shellcheck fixes
Updated README with new tool: cqjcr
Improved help and validation of parameters
Fixes for FreeBSD/MacOSX BSD-style sed
Fixed not aligned columns for -s option on BSDs
Improved -n/-v options validaton for -a operation
Fixed not displaying some properties
Fixed listing also boolean-type properties.
Basic validation for PATHSPEC operation argument.
CQM-116 cqjcr for browsing and changing repository