Updated CHANGELOG for 3.0.5

Merge pull request #100 from diffpy/next

v2.0.3

Merge pull request #97 from diffpy/next

Fix the wxpython align flags

Merge pull request #92 from dragonyanglong/next

REL: release v2.0.1

Merge pull request #90 from diffpy/next

Release py3 version and merge into main

Merge pull request #88 from dragonyanglong/next

REL: bump up version to 1.4.7

Merge pull request #86 from dragonyanglong/fix_py3_thread

Fix py3 thread

Merge pull request #85 from dragonyanglong/minor_remove

DOC: update installation instruction.

Merge pull request #83 from dragonyanglong/update_wx

Update wx

Merge pull request #82 from dragonyanglong/move_icons_path

Move icons and doc folder path