ignore database config

for security
missing table fields

fixed
Merge remote-tracking branch 'origin/noel' into development

Conflicts:
	.gitignore
	application/config/database.php
	application/controllers/dentist_dashboard.php
patient visit logs and database defaults
Merge remote-tracking branch 'origin/development' into jeh_branch

Conflicts:
	.gitignore
	application/config/database.php
	application/controllers/dentist_dashboard.php