[doc] Small fix in examples
[doc] improve add_maven_depmap section
[doc] pom_add_dep tip
[doc] textwidth=80
Modify test cases for #1017701

Even if same G:A:E:C is provided by the package, autoRequires has to specify
identical version to provided for version requires to be generated
Add testcase specifically for #1017701
[test] Indent depmaps in for require_multi_versioned