[doc,getting-started] Add section on LID inheritance.
Tabs to spaces
Convert <simple-condition> format string arguments to a vector for debug-message. Fixes issue #634.
Merge pull request #635 from BarAgent/issue-634

Issue 634
[rt] Fix typos in comments.
Added release note for resolution of issue #634.
Merge pull request #637 from BarAgent/issue-634

Added release note for resolution of issue #634.
Remove current-back-end-name.

Also, remove a usage of target-platform-name and get the platform
from the current project instead.
Rename target-platform-name to default-platform-name.

This method gets data from the environment, we want to be able to
get it from the current project.
Add a target-platform-name that pulls from current-library-description().
Use target-platform-name rather than separate os/architecture comparisons.
Remove platform-namestring-info when selecting compiler-back-end.
Use target-platform-name rather than target-os-name in HARP.
Remove target-architecture-name().

Replaced one remaining usage with an explicit list of 64 bit targets.
Remove invalid import (binding doesn't exist) of default-platform-info.
[env] Fix comment.
find-registries now takes platform-name as symbol.
[cbe] Combine methods by using if rather than singleton dispatch.
[cbe] Use target-platform-name rather than target-os-name.
[dfmc] Remove unused target-os-name().