Jônatas Guimarães changes.

This opens 'linear' for Linear Softwares Matemáticos
(http://linearsm.com.br/) development branch.
Bug fixing in Reports

- Fixed report editing: steps 3 and 4 were lost
- Added loading frame for report generation
- Fixed report generation: header with character '%' was not escaping
New Feature in preservation and Bug Fixed

- Customize Click quantity in preservation stock position.
- Link to Doc was lost when his code was changed.
Bug fixed adding new preservation
Merge remote-tracking branch 'origin/linear'

Files not merged:
- db/scripts/sqlite_default.db (an old version was causing problem, and
  the one from master is safe)
- js/tinymce.init.js