Fixed style in several macros.
Some more style changes
Updated INSTALL.md to list clients, improved options
Merge pull request #525 from stqism/docs

Updated INSTALL.md to list clients, improved options
Merge pull request #527 from vx-k/master

Fixed semantics of tox_array so it will be more more memory efficient.
Merge pull request #528 from vx-k/style_change

Style change