fix FindMATLAB.cmake

[WideLee]

Mex-it project is wonderful, I have Matlab 2014b in Ubuntu14.04 and fix some cmake issue by

1. add the support to R2014b
2. return MATLAB_FOUND to find_package function

[WideLee]

It seems that AppVeyor build failed by network issues, is there any possible to rerun the building process or how can I fix it?

Start-FileDownload "ftp://ftp.equation.com/make/32/make.exe" -FileName mingw32-make.exe
Start-FileDownloadInternal : Error downloading remote file: One or more errors occurred.
Inner Exception: Unable to cast object of type 'System.Net.FtpWebRequest' to type 'System.Net.HttpWebRequest'.
At C:\Program Files\AppVeyor\BuildAgent\Modules\build-worker-api\build-worker-api.psm1:242 char:2
+     Start-FileDownloadInternal -Url $Url -FileName $FileName -Timeout ...
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [Start-FileDownloadInternal], Exception
    + FullyQualifiedErrorId : System.Exception,Appveyor.BuildAgent.Api.Utils.StartFileDownloadInternalCmdlet
 

Thank you very much~