add restrictions do .gitignore

mac OS files .DS_STORE and files under logs/ in .gitignore
removing unwanted files

all under opentrials/logs/ folder
add .htaccess file - ticket #186

http://trac.reddes.bvsalud.org/projects/clinical-trials/ticket/186
include Color/Race and Genre fields

in UserProfile according so all users may set their definitions
Merge pull request #3 from joncasdam/dev

Dev