a2[I] replaced by extract<I>(a2)
masked functions added to load/store/aligned_load/aligned_store and doc updated
removed duplicate gather from common load and cleaned
pack scatter added
scalar and common masked aligned_load
scalar/simd unit tests for aligned_load/store
doc tidied in load.hpp
iostream and print statement removed
unit tests for masked gather and various masked misaligned loads added
avx masked aligned_load/store added
load and store unit tests split in load and store and scatter and gather variants to reduce compile time