Unmapped property exception fixed

v1.1.1

! Solution to Issue #1 : exception raised when there were unmapped pr…

.NET 4.0 support plus improvements and fixes, and some new features

This release contains important but not critical fixes:

• to support a wider audience, the library now supports .NET 4.0 Client profile instead of 4.6
• version 1.0 was not taking into account the absence or presence of the header and summary rows in the sheet, which affects the cell range associated with the table
• namespace character case corrected to be in line with EPPlus, please update your usings

In addition this release contain some additional features:

• extension methods for ExcelPackage for simple enumerating, checking and getting tables by name: GetTables, HasTable, GetTable
• Validate<> extension method for ExcelTable for getting all conversion problems before trying to enumerate a table with AsEnumerable

v1.0

Merge branch 'master' of https://github.com/zorgoz/EPPlus.TableAsEnum…