Merge branch 'develop' into feature/platformio-30

* develop:
  Remove debug info
  Add "Rebuild C/C++ Project Index" target to CLion and Eclipse IDEs
  Iterating the dictionary directly instead of calling .keys()
  Iterating the dictionary directly instead of calling .keys()
  Add example dynamic `build_flags`
  Add new articles
  Update examples

platformio/builder/tools/piomisc.py

@@ -163,7 +163,7 @@ def DumpIDEData(env):
 
         # includes from toolchains
         p = env.DevPlatform()
-        for name in p.get_installed_packages().keys():
+        for name in p.get_installed_packages():
             if p.get_package_type(name) != "toolchain":
                 continue
             toolchain_dir = p.get_package_dir(name)
@@ -179,7 +179,9 @@ def DumpIDEData(env):
     def get_defines(env_):
         defines = []
         # global symbols
-        for item in env.Flatten(env_.get("CPPDEFINES", [])):
+        for item in env_.get("CPPDEFINES", []):
+            if isinstance(item, list) or isinstance(item, tuple):
+                item = "=".join(item)
             defines.append(env_.subst(item).replace('\\"', '"'))
 
         # special symbol for Atmel AVR MCU
@@ -200,13 +202,17 @@ def DumpIDEData(env):
         "includes": get_includes(env_),
         "cc_flags": env_.subst(LINTCCOM),
         "cxx_flags": env_.subst(LINTCXXCOM),
+        "cc_path": util.where_is_program(
+            env_.subst("$CC"), env_.subst("${ENV['PATH']}")),
         "cxx_path": util.where_is_program(
             env_.subst("$CXX"), env_.subst("${ENV['PATH']}"))
     }
 
     # https://github.com/platformio/platformio-atom-ide/issues/34
     _new_defines = []
-    for item in env.Flatten(env_.get("CPPDEFINES", [])):
+    for item in env_.get("CPPDEFINES", []):
+        if isinstance(item, list) or isinstance(item, tuple):
+            item = "=".join(item)
         item = item.replace('\\"', '"')
         if " " in item:
             _new_defines.append(item.replace(" ", "\\\\ "))