Update .gitignore.
Update .gitignore.

kewaunited/passenger,clemensg/passenger,bf4/passenger,jawj/passenger,antek-drzewiecki/passenger,fabiokung/passenger-debian,kewaunited/passenger,bf4/passenger,fabiokung/passenger-debian,jawj/passenger,phusion/passenger,clemensg/passenger,clemensg/passenger,kewaunited/passenger,openSUSE/passenger,antek-drzewiecki/passenger,gravitystorm/passenger,antek-drzewiecki/passenger,erikogan/passenger,clemensg/passenger,bf4/passenger,gravitystorm/passenger,cgvarela/passenger,cgvarela/passenger,openSUSE/passenger,kewaunited/passenger,erikogan/passenger,erikogan/passenger,pkmiec/passenger,pkmiec/passenger,openSUSE/passenger,phusion/passenger,jawj/passenger,phusion/passenger,fabiokung/passenger-debian,kewaunited/passenger,pkmiec/passenger,bf4/passenger,cgvarela/passenger,phusion/passenger,fabiokung/passenger-debian,pkmiec/passenger,kewaunited/passenger,phusion/passenger,gravitystorm/passenger,jawj/passenger,openSUSE/passenger,cgvarela/passenger,antek-drzewiecki/passenger,gravitystorm/passenger,fabiokung/passenger-debian,cgvarela/passenger,antek-drzewiecki/passenger,phusion/passenger,cgvarela/passenger,jawj/passenger,jawj/passenger,clemensg/passenger,clemensg/passenger,pkmiec/passenger,erikogan/passenger,bf4/passenger,pkmiec/passenger,bf4/passenger,antek-drzewiecki/passenger,openSUSE/passenger,antek-drzewiecki/passenger,erikogan/passenger,gravitystorm/passenger,openSUSE/passenger,phusion/passenger,kewaunited/passenger,erikogan/passenger,clemensg/passenger,clemensg/passenger,pkmiec/passenger,jawj/passenger,gravitystorm/passenger,fabiokung/passenger-debian,bf4/passenger,antek-drzewiecki/passenger,kewaunited/passenger,cgvarela/passenger,phusion/passenger,cgvarela/passenger