Use dirname(@__FILE__) instead of Pkg.dir

This allows installing the package elsewhere.

Add testing against 0.5 to Travis - this runs the most
recent RC now, release once final tags are done

.travis.yml

@@ -4,7 +4,8 @@ os:
   - linux
   - osx
 julia:
-  # - release
+  - 0.4
+  - 0.5
   - nightly
 # matrix:
 #   allow_failures:

src/backends/gadfly.jl

@@ -41,7 +41,7 @@ function _initialize_backend(::GadflyBackend; kw...)
     @eval begin
         import Gadfly, Compose
         export Gadfly, Compose
-        include(joinpath(Pkg.dir("Plots"), "src", "backends", "gadfly_shapes.jl"))
+        include(joinpath(dirname(@__FILE__), "gadfly_shapes.jl"))
     end
 end
 

src/backends/immerse.jl

@@ -14,7 +14,7 @@ function _initialize_backend(::ImmerseBackend; kw...)
   @eval begin
     import Immerse, Gadfly, Compose, Gtk
     export Immerse, Gadfly, Compose, Gtk
-    include(joinpath(Pkg.dir("Plots"), "src", "backends", "gadfly_shapes.jl"))
+    include(joinpath(dirname(@__FILE__), "gadfly_shapes.jl"))
   end
 end
 

src/backends/plotly.jl

@@ -537,7 +537,7 @@ end
 # ----------------------------------------------------------------
 
 function html_head(plt::Plot{PlotlyBackend})
-    "<script src=\"$(Pkg.dir("Plots","deps","plotly-latest.min.js"))\"></script>"
+    "<script src=\"$(joinpath(dirname(@__FILE__),"..","..","deps","plotly-latest.min.js"))\"></script>"
 end
 
 function html_body(plt::Plot{PlotlyBackend}, style = nothing)

test/snoop.jl

@@ -4,7 +4,7 @@ import SnoopCompile
 # This only needs to be run once (to generate "/tmp/plots_compiles.csv")
 
 # SnoopCompile.@snoop "/tmp/plots_compiles.csv" begin
-#     include(Pkg.dir("Plots", "test","runtests.jl"))
+#     include(joinpath(dirname(@__FILE__), "runtests.jl"))
 # end
 
 # ----------------------------------------------------------
@@ -32,5 +32,5 @@ blacklist = ["MIME"]
 pc, discards = SnoopCompile.parcel(data[end:-1:1,2], subst=subst, blacklist=blacklist)
 SnoopCompile.write("/tmp/precompile", pc)
 
-pdir = Pkg.dir("Plots")
+pdir = joinpath(dirname(@__FILE__), "..")
 run(`cp /tmp/precompile/precompile_Plots.jl $pdir/src/precompile.jl`)