Revert "Added generated files to gitignore"

This reverts commit bacbb3e8e8483f1c96add0c5b2fae458881ea44c.
Reverting gitignore changes
Revert "Reverting gitignore changes"

This reverts commit 14465de071783c8d3b3f15f8c8c7984fb79249d0.
Revert "constant strings"

This reverts commit d85a0feefd59f124c5b4eed45057847965d3b2a1.
Revert "Dont' assume compiler is C++11 compliant"

This reverts commit 29513886ac2f5cdbd14fc252a3844463b3f65639.
Updating Hello World

Adding meta comment to the hello world example