Merge pull request #140 from tlbdk/master

Extend the documentation to be more detailed and add sections on Ubuntu
Show new client form on click
Merge branch 'master' of github.com:hillelcoren/invoice-ninja
Working on self-hosted
Updated readme
Updated readme
Working on self hosting
Bug fixes
Improvements for responsive design
Set intervention version
Enabled setting accepted credit cards
Added custom invoice fields
Added SG phone number support
Added SGD currency
Merge pull request #147 from chernjie/SGD_currency

Added SGD currency
Fix SG vs US phone country/area code clashes
Merge pull request #146 from chernjie/SGD

Added SG phone number support
Working on multi-user support
Merge branch 'master' of github.com:hillelcoren/invoice-ninja
Working on multi-user support