Fix building 'my' (Burmese) on Windows.

src/libespeak-ng/dictionary.c

 		*bad_phoneme = 0;
 
 	// skip initial blanks
-	while (isspace(*p))
+	while ((uint8_t)*p < 0x80 && isspace(*p))
 		p++;
 
 	while (((c = *p) != 0) && !isspace(c)) {

src/windows/data.vcxproj

     <Exec Command="cd $(ProjectDir)..\..\dictsource &amp;&amp; $(TargetDir)espeak-ng.exe --path=$(ProjectDir)..\.. --compile=zhy"/>
   </Target>
   <!-- NOTE: Compiling 'my' triggers an assertion, so is disabled for now. -->
-  <Target Name="Dictionaries" DependsOnTargets="af;am;an;as;az;bg;bn;ca;cs;cy;da;de;el;en;eo;es;et;eu;fa;fi;fr;ga;gd;grc;gu;hbs;hi;hu;hy;ia;id;is;it;jbo;ka;kl;kn;ko;ku;la;lfn;lt;lv;mk;ml;mr;ms;mt;nci;ne;nl;no;om;or;pa;pap;pl;pt;ro;ru;si;sk;sl;sq;sv;sw;ta;te;tn;tr;tt;ur;vi;zh;zhy"/>
+  <Target Name="Dictionaries" DependsOnTargets="af;am;an;as;az;bg;bn;ca;cs;cy;da;de;el;en;eo;es;et;eu;fa;fi;fr;ga;gd;grc;gu;hbs;hi;hu;hy;ia;id;is;it;jbo;ka;kl;kn;ko;ku;la;lfn;lt;lv;mk;ml;mr;ms;mt;my;nci;ne;nl;no;om;or;pa;pap;pl;pt;ro;ru;si;sk;sl;sq;sv;sw;ta;te;tn;tr;tt;ur;vi;zh;zhy"/>
 </Project>

src/windows/installer/Product.wxs

       <ComponentGroupRef Id="LangBengali"/>
       <ComponentGroupRef Id="LangBosnian"/>
       <ComponentGroupRef Id="LangBulgarian"/>
+      <ComponentGroupRef Id="LangBurmese"/>
       <ComponentGroupRef Id="LangCatalan"/>
       <ComponentGroupRef Id="LangChineseCantonese"/>
       <ComponentGroupRef Id="LangChineseMandarin"/>
             <Component Id="mt_dict" Win64="$(var.Win64)" Guid="5FE13F53-1532-46FD-BD77-EFFEDEFF0EEB">
               <File Name="mt_dict" Source="$(var.ProjectDir)..\..\..\espeak-data\mt_dict" KeyPath="yes"/>
             </Component>
+            <Component Id="my_dict" Win64="$(var.Win64)" Guid="2C066949-D649-4A1C-AFBF-C8642547F075">
+              <File Name="my_dict" Source="$(var.ProjectDir)..\..\..\espeak-data\my_dict" KeyPath="yes"/>
+            </Component>
             <Component Id="nci_dict" Win64="$(var.Win64)" Guid="992FEB10-C20E-4981-A348-818DB186B5DF">
               <File Name="nci_dict" Source="$(var.ProjectDir)..\..\..\espeak-data\nci_dict" KeyPath="yes"/>
             </Component>
                 <Component Id="cmn" Win64="$(var.Win64)" Guid="B9F21B2A-BD29-42DF-84D6-AD1CA29799B5">
                   <File Name="cmn" Source="$(var.ProjectDir)..\..\..\espeak-data\voices\sit\cmn" KeyPath="yes"/>
                 </Component>
+                <Component Id="my" Win64="$(var.Win64)" Guid="0927A4D6-4DA1-431C-ABFA-E9871165B3EC">
+                  <File Name="my" Source="$(var.ProjectDir)..\..\..\espeak-data\voices\sit\my" KeyPath="yes"/>
+                </Component>
                 <Component Id="yue" Win64="$(var.Win64)" Guid="C08D04D1-B17B-40CA-B6B6-3C78F1D4E94A">
                   <File Name="yue" Source="$(var.ProjectDir)..\..\..\espeak-data\voices\sit\yue" KeyPath="yes"/>
                 </Component>
       <ComponentRef Id="bg"/>
       <ComponentRef Id="bg_dict"/>
     </ComponentGroup>
+    <ComponentGroup Id="LangBurmese">
+      <ComponentRef Id="my"/>
+      <ComponentRef Id="my_dict"/>
+    </ComponentGroup>
     <ComponentGroup Id="LangCatalan">
       <ComponentRef Id="ca"/>
       <ComponentRef Id="ca_dict"/>
       <ComponentRef Id="cy_dict"/>
     </ComponentGroup>
   </Fragment>
-</Wix>
+</Wix>