Remove "image_url" function and "image_path" option

[nschonni]

BREAKING CHANGE

This function doesn't currently exist in the Sass spec.
Fixes gh-489

---

The testing will fail unless SassC is also updated, or the image_path option is left in and noop'd

[HamptonMakes]

People are going to hate us. But, your right. This should be a breaking change to go to 3.0, it's more worth it. URL handling is still weak, so we need to make sure this is doable in Sass or equivalent.

[HamptonMakes]

Hmmm... so I merged this in locally, there were still image_url references, so the build wouldn't happen. So, I went through and removed them.

As I was running the test suite.... it ran 10-20x slower. Seriously. No idea why.

I'm re-changing my mind. I think we need to have a better plan on how to handle image paths and stuff. And, the fact that it's causing my fan to turn on for some insane mysterious reason... it's a sign!

[nschonni]

Apparently I missed something or failed to commit something in context.cpp 😊

I also needed to make the following changes in sassc to get the local changes to run

diff --git a/sassc.c b/sassc.c
index 7e97ffd..e4826e1 100644
--- a/sassc.c
+++ b/sassc.c
@@ -157,7 +157,6 @@ int main(int argc, char** argv) {
     bool generate_source_map = false;
     struct sass_options options = { 0 };
     options.output_style = SASS_STYLE_NESTED;
-    options.image_path = "images";
     char *include_paths = NULL;
     options.precision = 5;

diff --git a/sassloop.c b/sassloop.c
index 992b594..d05d262 100644
--- a/sassloop.c
+++ b/sassloop.c
@@ -4,7 +4,7 @@
 #include "libsass/sass_interface.h"

 int main(int argc, char** argv)
-{  
+{
    if (argc < 3) {
        printf("Usage: sassloop [INPUT FILE] [ITERATIONS]\n");
        return 0;
@@ -15,7 +15,6 @@ int main(int argc, char** argv)
        struct sass_file_context* ctx = sass_new_file_context();
        printf("*** ALLOCATED A NEW CONTEXT\n");
        ctx->options.include_paths = "";
-       ctx->options.image_path = "images";
        ctx->options.output_style = SASS_STYLE_NESTED;
        ctx->input_path = argv[1];
        printf("*** POPULATED THE CONTEXT\n");
@@ -31,10 +30,10 @@ int main(int argc, char** argv)
      else {
        printf("Unknown internal error.\n");
      }
-       
+
      sass_free_file_context(ctx);
      printf("*** DEALLOCATED THE CONTEXT\n");
      sleep(1);
    }
    return 0;
-}
\ No newline at end of file
+}

[am11]

This was addressed by #834.