Updates for latest Julia 0.7 (#67)

* Use `something` instead of `coalesce`

`coalesce` is now for `missing` only rather than for both `missing` and
`nothing`, and `something` provides the equivalent functionality for
`nothing`.

Fixes #66.

* Add 0.7 testing to the CI setup

.travis.yml

@@ -5,6 +5,7 @@ os:
   - osx
 julia:
   - 0.6
+  - 0.7
   - nightly
 matrix:
   allow_failures:

REQUIRE

@@ -1,3 +1,3 @@
 julia 0.6
 BinaryProvider 0.3
-Compat 0.62
+Compat 0.67

appveyor.yml

@@ -2,6 +2,8 @@ environment:
   matrix:
   - JULIA_URL: "https://julialang-s3.julialang.org/bin/winnt/x86/0.6/julia-0.6-latest-win32.exe"
   - JULIA_URL: "https://julialang-s3.julialang.org/bin/winnt/x64/0.6/julia-0.6-latest-win64.exe"
+  - JULIA_URL: "https://julialang-s3.julialang.org/bin/winnt/x86/0.7/julia-0.7-latest-win32.exe"
+  - JULIA_URL: "https://julialang-s3.julialang.org/bin/winnt/x64/0.7/julia-0.7-latest-win64.exe"
   - JULIA_URL: "https://julialangnightlies-s3.julialang.org/bin/winnt/x86/julia-latest-win32.exe"
   - JULIA_URL: "https://julialangnightlies-s3.julialang.org/bin/winnt/x64/julia-latest-win64.exe"
 

src/node.jl

@@ -1221,7 +1221,7 @@ end
 
 function findfirstchar(char::Char, str::AbstractString)
     @static if VERSION > v"0.7-"
-        return coalesce(findfirst(isequal(char), str), 0)
+        return something(findfirst(isequal(char), str), 0)
     else
         return searchindex(str, char)
     end