Initial source checkin
Added some missing headers
fixed incorrect listing of and tracking of jobs causing old jobs still to display
added support for creating charts / diagrams of pipelines
added support for declaring transformations and filters using annotations instead of closures
Added pass through of arguments to tail when bpipe log is used (eg: bpipe log -n 500)
Prevented overwrite when same file is cleaned up multiple times
nudged version
Added space for clearer formatting of log
Added display of more commands to usage
prevent display of output file name if pipeline failed (it would be cleaned up)
added support for modularized pipelines : load pipelines from BPIPE_LIB or ~/bpipes
fixed some bugs wrt to how inputs are resolved when filter, transform and from are used together
fixed pipeline stages with annotations in ~/bpipes not showing up in dependent files
removed stray debug printout
support for implicit searching for input files via inline extension
fixed failure to find outputs from previous stage sometimes when generation of output was skipped
added mini test framework and one test
made tests work on cygwin
added tweak to make test with timestampe dependency work
fixed broken bpipe command line on Mac / OSX / BSD
Much refactoring to pull out lazy use of static scope in preparation for parallelization
added more simple tests
fixed wrong default output used when input derived from property reference
fixed broken refactoring causing runtime errors regarding missed property references
Fixed tests
Fixed string methods not working on input variable
fixed various niggles with wrapped PipelineInput's leaking into other places (output variables) and not behaving like normal strings (defined plus operator)
Refactored PipelineContext into separate file
Added simple tests for transform, filter
Refactored 'nextInputs' to be part of PipelineContext instead of using static scope
refactored filter, transform, produce out of PipelineCategory and into PipelineContext
removed static lastInputs
deleted some mistakenly checked in swap files