message: Update release date in CHANGELOG + a small tweak.
diff: http://mfem.org
  -Version 4.1, released on March 9, 2020
  -======================================
  +Version 4.1, released on March 10, 2020
  +=======================================
  Starting with this version, the MFEM open source license is changed to BSD-3.
  @@ -42,7 +42,7 @@ Improved GPU capabilities
  * CUDA pointers, using cudaMalloc and HIP pointers, using hipMalloc,
  * Managed CUDA/HIP memory (UVM), using cudaMallocManaged/hipMallocManaged,
  * Umpire-managed memory, including memory pools,
  - * 32- or 64-bit aligned memory, using posix_memalign (WIN32 also supported),
  + * 32- or 64-byte aligned memory, using posix_memalign (WIN32 also supported),
  * Debug memory with mmap/mprotect protection used by the new "debug" device.
  libCEED support
  