Fixed docs alignment in release notes [skip ci].

Pre-release commits.

Refined slicing.

Final changes before release v1.4.9

Doc revisions, version increment, testfile added.

Doc fixes [ci skip].

Final updates before rel v1.4.6

Revised docstring [skip ci].

Updated inventory.

Merge branch 'devel' of ssh://bitbucket.org/abakan/prody into devel