Summary: Added checking for gcc and simplified the sig_handler() in the test case
Reviewed-by: dcubed, coleenp, minqi, dlong

Summary: Added -DLINUX to the gcc command and improved the .sh script
Reviewed-by: dcubed, dholmes, minqi

Summary: Added (sig < MAXSIGNUM) check in jsig.c
Reviewed-by: dholmes, acorn

7107135: Stack guard pages are no more protected after loading a shared library with executable stack
Summary: Detect the execstack attribute of the loaded library and attempt to fix the stack guard using Safepoint op.
Reviewed-by: dholmes, zgu
Contributed-by: ioi.lam@oracle.com

Summary: Add new development launcher called hotspot(.exe)
Reviewed-by: coleenp

Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg

Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair