Squashed commit of the following:

commit 1196ce64fa2d647ee6b2918719f4237052bbbe3a
Author: nick <n.c.k.wardle@googlemail.com>
Date:   Thu Dec 12 12:01:41 2013 +0100

    Bias study for Envelope with MVA legacy
    1) Many fixes for intellegent scanning of mu-values
    2) Binning set to appropriate level for using binned signal model
    3) Adding options in check_bias_jobs to resubmit failed/running jobs
    4) Adding parameters to fit plots and labels to envelope nll curve plots

commit b17b977f8619f84bba7474e5429cef9cae242009
Merge: fe2a00c 210336a
Author: nick <n.c.k.wardle@googlemail.com>
Date:   Thu Dec 5 10:46:07 2013 +0100

    Merge branch 'nckw-fixes-for-bias-studies-in-low-stats' of github.com:nucleosynthesis/h2gglobe

commit 210336a9b29d5845fe3ca40184031fa7984c9f4a
Author: nick <n.c.k.wardle@googlemail.com>
Date:   Thu Dec 5 03:02:47 2013 +0100

    Use pull definition (with nlls) only for tails. core will be
    inaccurate so use actual error there
    (Fixme--could yied more toys if caluclate pull 1st way if profile isnt large enough?)

commit fe2a00c1306ed131a8053be0561b1227f97137eb
Merge: 318d101 1bd06a4
Author: nick <n.c.k.wardle@googlemail.com>
Date:   Wed Dec 4 23:45:36 2013 +0100

    Merge branch 'master' of https://github.com/h2gglobe/h2gglobe

commit 318d10143330e1c015e7974885a61290c87e27fc
Author: nick <n.c.k.wardle@googlemail.com>
Date:   Wed Dec 4 23:32:54 2013 +0100

    Failures causing problems

commit 1cce5fde14eaba29e5abac5d33c2b91867027e95
Author: nick <n.c.k.wardle@googlemail.com>
Date:   Wed Dec 4 20:58:04 2013 +0100

    Fix for lots of abortions in low stats categories

commit 4bc594cf331dd9a6f03b083fe44b823981f0837f
Author: nick <n.c.k.wardle@googlemail.com>
Date:   Wed Dec 4 16:57:09 2013 +0100

    Additional fixes, mostly for plotting of bias studies in envelope method