Updating docs
Updating markdown readme
Vaadin 7.1 Support and Bugfixes

 - Vaadin 7.1 support added
 - Fixed a bug to send the carret to the first placeholder on widget focus
Bugfix

 - Fixed bug to set carret on the first placeholder of widget on focus
BugFix

 - BigFix - Now checking null field datasources
Merge patch
RootStream Merge

 - Merging Vaadin 7.1 Upgrade and bugfix into RootStream Branch
Vaadin upgrade and bug fixes

 - Fix NPE on setting a null property datasource on Decimal Fields.
 - Fix setting null on DecimalField
 - Fix event prevention on pressing keys like END or TAB on NumericField