proper compile flags for Release target; add fib/trim files to .mbedignore so mbed compile doesn't pick them up

tools/export/codeblocks/__init__.py

@@ -66,6 +66,7 @@ class CodeBlocks(GccArm):
 
         comp_flags = []
         debug_flags = []
+        release_flags = [ '-Os', '-g1' ]
         next_is_include = False
         for f in self.flags['c_flags'] + self.flags['cxx_flags'] + self.flags['common_flags']:
             f = f.strip()
@@ -97,6 +98,7 @@ class CodeBlocks(GccArm):
         ctx = {
             'project_name': self.project_name,
             'debug_flags': debug_flags,
+            'release_flags': release_flags,
             'comp_flags': comp_flags,
             'ld_flags': self.flags['ld_flags'],
             'headers': sorted(list(set([self.filter_dot(s) for s in self.resources.headers]))),

tools/export/codeblocks/cbp.tmpl

@@ -27,6 +27,12 @@
 				<Option type="1" />
 				<Option compiler="arm-elf-gcc" />
 				<Option use_console_runner="0" />
+				<Compiler>
+                                        <Add option="-DNDEBUG" />
+					{%  for f in release_flags -%}
+					<Add option="{{f}}" />
+					{%  endfor -%}
+				</Compiler>
 				<Linker>
 					<Add option='-Wl,-Map,&quot;bin/Release/{{project_name}}.map&quot;' />
 				</Linker>