Fix the Android Eclipse CDT generator.
Fix the Android Eclipse CDT generator.

This fixes a couple of problems:
- CONFIGURATION_NAME is now getting set. This seems to be a required
variable now.
- Macro values are now escaped before getting written to the XML out
in order to handle macros with XML syntax.

Review URL: https://chromiumcodereview.appspot.com/10823266/
Patch from Jesse Greenwald <jgreenwald@chromium.org>!
witwall/gyp,witwall/gyp,witwall/gyp,witwall/gyp,witwall/gyp