replace stupid doxygen

api.docurium

+{
+ "name":   "libgit2",
+ "github": "libgit2/libgit2",
+ "input":  "include/git2",
+ "prefix": "git_",
+ "output": "docs",
+ "legacy":  {
+    "input": {"src/git": ["v0.1.0"],
+              "src/git2": ["v0.2.0", "v0.3.0"]}
+  }
+}

api.doxygen

-PROJECT_NAME = libgit2
-
-INPUT            = include/git2
-QUIET            = YES
-RECURSIVE        = YES
-FILE_PATTERNS    = *.h
-OUTPUT_DIRECTORY = apidocs
-GENERATE_TAGFILE = apidocs/libgit2.tag
-
-JAVADOC_AUTOBRIEF     = YES
-MACRO_EXPANSION       = YES
-EXPAND_ONLY_PREDEF    = YES
-OPTIMIZE_OUTPUT_FOR_C = YES
-STRIP_CODE_COMMENTS   = NO
-FULL_PATH_NAMES       = NO
-CASE_SENSE_NAMES      = NO
-
-PREDEFINED = \
-  "GIT_EXTERN(x)=x" \
-  "GIT_EXTERN_TLS(x)=x" \
-  "GIT_INLINE(x)=x" \
-  "GIT_BEGIN_DECL=" \
-  "GIT_END_DECL=" \
-  DOXYGEN=