scripts/run: Spawn subshell for server
log: Add notes for Tuesday
tools: Implement a continuous build tool

This adds a tool watchr which can perform real-time rebuilding of
project sources and hosting a development server.

Issue #267.
tools/pipbot: Integrate watchr command

This allows the user to run "pipbot watch" to spawn a watchr process.

Issue #267.
Merge branch 'issue/267'