Change definition of summary/description break

In this commit I have made the following documentation changes:

- Changed short description to summary
- Changed long description to description
- Changed example mail address
- Changed definition when a summary breaks and becomes a description
  to match PSR-5 and actual usage.
Integrated code review feedback
Added new docs on QA
Fix feedback on PR
Merge remote-tracking branch 'upstream/develop' into develop
Update phpdoc.dist.xml loading issue

When ran phpdoc without parameters it can't load phpdoc.dist.xml directly and show a "No parsable files were found" Exception.
Change userConfig file path search to take dist even if the user do not give a specific parameter.

Signed-off-by: Stéphane HULARD <s.hulard@chstudio.fr>
Merge pull request #1377 from mvriel/feature/qa-docs

Added new docs on QA
Add is_readable check to ensure that $customeUserConfigPath is a valid file

If $defaultUserConfigPath and $customUserConfigPath are null or contain invalid path we should not try to load it...

Signed-off-by: Stéphane HULARD <s.hulard@chstudio.fr>
Merge pull request #1380 from shulard/feature/config-dist-loading

Update phpdoc.dist.xml loading issue
Merge pull request #1353 from mvriel/feature/RD-34

Change definition of summary/description break
Add inherited_from element on inherited methods