modelbuilder: avoid multiple load of the same module

Signed-off-by: Alexandre Terrasa <alexandre@moz-code.org>
added swap files, tests results and Eclipse project file to git ignore

Signed-off-by: Alexandre Terrasa <alexandre@moz-code.org>
nitdoc: Replace old nitdoc by nitdoc_ni

Signed-off-by: Alexandre Terrasa <alexandre@moz-code.org>
Merge remote-tracking branch 'alexandre/nitdoc'