RFR(S): Fix generation of malformed options for Projectcreator

[Nils Eliasson]

Preferably reviewed by someone with a little nmake experience.

This fixes a bug which causes visual studio to throw errors when trying 
to build hotspot.

make/windows/projectfiles/common/Make sets up some options that is 
passed as a string to ProjectCreator.java. That string gets unmatched 
pairs of escaped quotation marks around the hotspot release version. 
After closer examination that happens when a number of vars and escaped 
quotation marks are appended together on a multi line string append.

This fixes removes unnecessary (and potentially bad) quotation marks, 
simplifies the option creation and creates the options with escaping 
characters on the same line.

http://cr.openjdk.java.net/~neliasso/8003934/webrev.01/

Thanks,
Nils Eliasson