Shell command 'EXECUTE' gracefully handles an empty line

Signed-off-by: Tim van Boxtel <tim@vanboxtel.ca>
Shell commands fail gracefully if no arguments are provided.

Signed-off-by: Tim van Boxtel <tim@vanboxtel.ca>
Clean up comment artifact
Use floor division for index calculation
fixed #244 - better ustr function
added supports_optional_match method (#233)
fixes #233
fixes #227
Merge pull request #236 from knowledgizer/true-division

Use floor division for index calculation
added client-side geoff deprecate notice (#207)
updated client-side geoff deprecation notice (#207)
updated client-side geoff deprecation notice (#207)
added deprecation warning to geoff insert/merge methods; fixes #207
fixes #230 (obsolete usage of DEFAULT_URI)
fixed broken docstring
fixes #248
removed pretty-printing from response format (#204)
removed "or_fail" tests as server broken and chance of being fixed practically zero :-(
added warnings for "or_fail" batch methods due to broken server
added raw mode for batch responses to work with get_properties