changed dynamic envelope scanning analysis interface

added capacity for passing in a reference to a function that allows
calculating yield from dfba solution
comment clarification
Merge branch 'master' into kai-branch
Merge branch 'master' into kai-branch
Merge branch 'master' into kai-branch
Merge branch 'daniel-branch'
modified dyscco.py

removed "metric" format of storing strain performance.
Merge branch 'master' into kai-branch

Conflicts:
	src/framed/bioreactor/dyssco.py
Revert "Merge branch 'master' into kai-branch"

This reverts commit 917522cd2cfddf52c6434e5ab0a44d254a961df4, reversing
changes made to ade4e806588e82ddfd17da8941ff15384d7f18f5.
Revert "Revert "Merge branch 'master' into kai-branch""

This reverts commit 6462ca5547ff06b0d76c8321de24ea82ae122055.
Revert "Revert "Revert "Merge branch 'master' into kai-branch"""

This reverts commit 6be531a787d9ef40e6d94966bfea9c8ba8daa57d.
Revert "modified dyscco.py"

This reverts commit 07be036946aa081f52ad66f5f63a6e24c8142cf0.
removed performance_metrics
changed calculate_performance()

changed the key to performance dictionary
growth -> growth_rate
yield_biomass -> biomass_yield
titer -> product_titer
yield -> product_yield
Merge branch 'master' into kai-branch

Conflicts:
	src/framed/bioreactor/dyssco.py
Revert "Merge branch 'master' into kai-branch"

This reverts commit 767c36d148b4baed4710aa0734e374d19ceddf78, reversing
changes made to 9b198e0d3c3fc3e09d13a08b126115b602dc38d4.
edits to dyscco.py
Merge branch 'daniel-branch'

Conflicts:
	src/framed/bioreactor/dyssco.py
Changes in SBML loader. So that it doesn't fail if the sbml file doesn't contain flux bounds information.
Merge branch 'master' into daniel-branch