better formatted error message when a problem occurs in the script
before the pipeline begins executing
allow resolution of 'load' files relative to the pipeline script itself
so that it is easy to maintain a pipeline file and ancillary files in
the same directory
better handling of exception when probing tools in tool database
new feature: allow for muliply by Map to set an explicit mapping of
branch names to inputs
special behavior for accompanies when dealing with transforms: always
adds extension to end of file rather than replacing
allow requires to specify complete file name instead of just extension
added test demonstrating filter bug when output.dir is set
-  more graceful / better handling of errors that cause the script to not
parse or load at all

-  support for finding bpipe.config in the same directory as the
   pipeline script (which might be different to the directory that
   bpipe is running in)
fix filter_on_prev_input test failing (filter interacting badly with
output.dir being set in certain cases)
fix permissions
fix regression causing cleanup test to fail
fix regression in accompanies (test failure)
fix incorrect assertion in test
"bpipe query" not working on files in non-default output directories
(eg: specified with output.dir=....)
allow "procs" to be specified as integer in resource manager config
fix first line of log file sometimes not showing when using "bpipe log
..."
ability to configure and customize reports from bpipe.config (custom
names, etc.), and to send by email when email notifications configured
added support to transform a single file pattern to multiple targets
Ability to explicitly cause a branch to either fail or succeed prematurely
(via "fail" and "succeed" commands)
initial implementation of a 'bpipe status' command, to show exactly what
is currently running
missing file from succeed/fail feature
experimental feature: supply closure with ".using(...)" for lazy
evaluation, allowing reference to runtime pipeline variables in
configuration of pipeline stages
fixed file(...) function sometimes returning file object for "<file>/."
updated release notes and build version for 0.9.8.6_beta_1
fixes to formatting (remove tabs)
changes to allow "single" queue to handle multiple tasks (vlsci)
fix default build to autodetect Gridgain jars and compile without if not
found
get mail.jar from Maven so default checkout compiles