Test & Fix Mono

[benjojo]

[benjojo]

Well, Mono is breaking for some really strange reasons.

    Program.cs(43,20): error CS0029: Cannot implicitly convert type `System.Drawing.Bitmap' to `System.Drawing.Bitmap'
    Program.cs(57,41): error CS0584: Internal compiler error: Method not found: 'System.Linq.Enumerable.Aggregate'.
    Program.cs(59,17): error CS1579: foreach statement cannot operate on variables of type `object' because it does not contain a definition for `GetEnumerator' or is inaccessible
    Words.cs(54,30): error CS0584: Internal compiler error: Method not found: 'System.Linq.ParallelEnumerable.AsParallel'.
    Words.cs(54,21): error CS0023: The `!' operator cannot be applied to operand of type `object'

     11 Warning(s)
     5 Error(s)

[benjojo]

This one was fixed by updating the travis's default mono to version 3 since it seems 2.6.1 is a tad broken.