thread.js event stopPropagation to preventDefault
Fixes #1309

Adds to .gitignore admin/backups folder (excluding index.html), some
files like .htpasswd and Eclipse IDE project files.
Merge pull request #1329 from avril-gh/Fixes-#1309-.gitignore-ect

Fixes #1309 gitignore ect (feature)
Merge pull request #1328 from MattRogowski/feature

thread.js event stopPropagation to preventDefault