searchsorted overrides, resolves #85

[dlfivefifty]

This works around a segfault in Base's searchsorted with offset indices, see #85 and JuliaLang/julia#33977.

This should eventually be back-ported to Base: perhaps with a simple check in Base.searchsorted:

lo < 0 && return _safe_searchsorted(...)

[fredrikekre]

Tabs -> spaces

[dlfivefifty]

The test errors on nightly seem unrelated:

ERROR: Error when installing package CatIndices:
144MethodError: no method matching install_archive(::Array{String,1}, ::Base.SHA1, ::String)
145Closest candidates are:
146  install_archive(!Matched::Array{Pair{String,Bool},1}, ::Base.SHA1, ::String) at /

[fredrikekre]

JuliaLang/Pkg.jl#1514

[fredrikekre]

LGTM, linux nightly seems outdated for some reason.

[fredrikekre]

If you also bump the patch number we can release directly.