* docs-improve:
Docs: cleanup version branches section
Docs: those/these composer/Composer
Docs: notice => note
Docs: Fix shell sample output
Docs: Add back a second clear note about hardcoded versions in VCS
Docs: HHVM is not called HipHop
Docs: versions plural, and update == rm lock&install
Docs: don't use short forms, it => composer
Docs: composer.lock lists versions, not constraints
Docs: superfluous comma & it => Composer
The confusing part is probably rather constraints and how versions work, not what they are
Docs: Clarify what "It" stands for
Finished reworking docs to clarify points about versioning (fixes#6088)
Updated basic usage and versions pages to clarify how versioning and package resolution works (refs #6088)
Added some useful overview information about repositories in the Basic Usage documentation.
001fe8afcf