Corrected the comm to be a row comm in AssemblyMapDG and also added a npz test...

See merge request nektar/nektar!1144

Made gs lib compile to a seperate directory

See merge request nektar/nektar!1145

fix collection unit test

See merge request nektar/nektar!1160

Patch policy on ImageMagick to enable PDF conversion

See merge request nektar/nektar!1175

remove phase shift in fft coefficients issue #208

See merge request nektar/nektar!1146

collapse and tidy up MultiRegions so that ExpList is reduced to one class

See merge request nektar/nektar!988

Updates from Dave's comments, compiling but still need to fix some tests (or see if they need tweaking)

IncNS immersed boundary method SPM

See merge request nektar/nektar!1065

Add barycentric interpolation to PhysEvaluate

See merge request nektar/nektar!1126

'virtual' is redundant since the function is already declared 'override'/'final' but left as is due to code convention

Upgrade minimum required CMake to 3.5.1, upgrade third-party Boost version, fix Windows documentation

Closes #218, #219, and #220

See merge request nektar/nektar!1152

Merging windows source build documentation updates branch.
These changes will be included in a combined MR with the
cmake3 and third party boost version updates.

This merges the third party boost update to v1.71 into the
feature/cmake3upgrade branch.