[[ Emacs ]] Refine indentation rules.

Fix indentation at the start of blocks (e.g. if).
Merge pull request #1352 from peter-b/misc-emacs

[[ Emacs ]] Refine indentation rules.
[[Bug 13840]] Stop MCS_savebinaryfile() from failing if MCresult non-empty.

If MCresult had a nonempty value before calling MCS_savebinaryfile(),
then it would indicate failure by returning false even on success.
[[ Bugfix 13580 ]] Use g++ as compiler by default
[[ Bugfix 13580 ]] Slightly different approach
[[ Bugfix 13580 ]] Just use C++ compiler for engine compilation
[[ Bugfix 13580 ]] Remove various explicit mentions of libstdc++
Merge commit 'refs/pull/1378/head' of https://github.com/runrev/livecode into release-7.0.1
Merge commit 'refs/pull/1380/head' of https://github.com/runrev/livecode into release-7.0.1