Fix an error where vowels start too loud (too strong attack).

Added command-line option  --compile-debug, which is like --compile but it includes source line information from the *_rules file, which is displayed with the -X option. 

espeakedit: Added  Compile->Compile_dictionary(debug),

Fixed <emphasis> which was broken in the previous version(s).
<emphasis> now reduces the previous stressed syllable to secondary stress.


git-svn-id: https://espeak.svn.sourceforge.net/svnroot/espeak/trunk@119 d46cf337-b52f-0410-862d-fd96e6ae7743