Started on a content stream module
Added indent/dedent methods
Added a single-line write method
Added a writeLine method
Fixed quotes around tab character
Fixed retrieval of stream reference in write and writeLine
Updated buffered source to be passed a ContentStream
Added content length tracking
Updated position calculation and simplified the code
Switchted to using ContentStream for the header and footer
Initial rework to use ContentStream for body contents
Finished rework to switch body construction to using ContentStream
Cleaned up indentations of html output