Fix #1309 master

Add .gitignore to master
https://github.com/mybb/mybb/issues/1309
Merge pull request #1311 from Destroy666x/addgitignorem

Fix #1309 master
Fixes #1309 gitignore ect (master)

adds to gitignore admin/backups, htpasswd, and some Eclipse IDE project
files.
Merge pull request #1330 from avril-gh/Fixes-#1309-gitignore-ect

Fixes #1309 gitignore ect (master)
Credits to icons' author

Adding credits to http://p.yusukekamiyamane.com/
Revert "Credits to icons' author"

This reverts commit d32e8009101dc65cb9b3d8cfc1e6c4a1d035be24.
Merge branch 'master' of https://github.com/mybb/mybb