Changed page delimiter to ----+

See issue #167
Changed page break style in www/*
Replaced all page breaks in doc/*
Updated test_json_resource
Updated test_resources.py, EXCEPT for negotiated resources
Updated test_website
Initial implementation of issue #167

-Untested
-Other source files have not been updated
Updated most of the page breaks
Fixed most of the remaining page breaks
Fixed split not yielding the final page
Removed redundant assertion from RenderedResource
Line offsets are now calculated during page splitting
Updated test_resources for padding/offset change
Fixed very obvious typo
Offset now calculates based on all previous pages

Previously, it incorrectly only used the one previous page
Renamed test_offsets to check_offsets
Updated some negotiated_resource tests
Undid accidental change to Makefile
Added (unfinished) test suite for the generic functions in resources
Removed old commented code

Dramatically simplified this is_dynamic block
Removed unremoved import from testing