Review 70_HR_FIX_CANDIDATEs

Bug 196251 - Can not run/debug Subprojects sample on Windows:
http://netbeans.org/bugzilla/show_bug.cgi?id=196251
Showstopper because Run/Debug are main actions of C/C++ project.
The bag is appeared in last version of Cygwin.
Fix save because eliminates redundant ';' delimiter in search paths 
added by IDE.
See conformations from QA and Andrew Krasny in the bug.
Change set:
http://hg.netbeans.org/cnd-main?cmd=changeset;node=a2bd1c26d8dc

Bug 196486 - java.lang.IllegalStateException if IDE is closed:
http://netbeans.org/bugzilla/show_bug.cgi?id=196486
Showstopper because it is possible data lost on IDE closing.
The bag is appeared in last week before code freeze.
Fix save because removes metadata listener before project saving on 
project closing event and fixes reading/writing project name.
See conformations from QA and Vladimir Voskresensky in the bug.
Change set:
http://hg.netbeans.org/cnd-main/rev/b39bbe05f3d6

Bug 196494 - Deleting a makefile based project deletes the makefile:
http://netbeans.org/bugzilla/show_bug.cgi?id=196494
Showstopper because it is data lost.
The bag is appeared two months ago when redundant make file was eliminated.
Fix save because excludes makefile from deleted files for project from 
exiting code.
Change set:
http://hg.netbeans.org/cnd-main/rev/f92bc9638bc9

Alexander