Merge pull request #9 from jubianchi/master

Add twice and thrice doc.
little modification about PR #9
Sync with fr c945fb28b200a6b553dab1fc26ba9705e5edbd97
Quickfix on toc
Rearrange titles in IDE integration section (fr)
Add failure fields section (fr)
Copy code from gist (https://gist.github.com/4032715)
Add intro and titles
Add failure fields configuration examples (fr)
Replace references to atoum\test in extends (Fix #10)
Merge pull request #11 from jubianchi/fix-10

Replace references to atoum\test in extends (Fix #10)
Merge pull request #1 from jubianchi/failure-fields

Failure fields documentation
Error asserter has to be followed by exists or notExists.
Merge pull request #12 from stephpy/fix_error_chapter

Error asserter has to be followed by exists or notExists.
add new resetMock($mock) method
fix "$this->resetMock($mock)" documentation
add script to convert markdown to skriv
fix broken links
converting all documentation files to skriv !
fix english doc