Revert "disable building the docs"

This reverts commit c66bd4a8889bc2841136b7c984c58203bf9ad0b6.
Revert "lower the optimization as it causes bugs on 32 bits (SSE still here)"

This reverts commit 8b390e131044181d884af0d4a3e3897a53c1db1a.
Revert "install to hydro ........"

This reverts commit b58d7eba466708b46c76f169b7538ee3ad2927af.
Revert "Customized debian rules file"

This reverts commit 921b7f683f5bc759cba63c5a29086de3a9ae3601.
Customized debian rules file
Rebase from 'release/hydro/opencv2'
Placing debian template files
Customized debian rules file
Revert "Customized debian rules file"

This reverts commit 4885cd0ab18ebe53f6c35eefc1aee97be252253a.
Customized debian rules file
Rebase from 'release/hydro/opencv2'
Placing debian template files
Customized debian rules file