Made the scanners generated by gelex compilable in void-safe mode with ISE 7.3.
File .gitignore added.
Value of gc_lib in file tool/gec/confic/c/gcc.cfg changed to "-lgc"
(the library may reside in a directory different from $BOEHN_GC/lib).
Revert "Fixed bug in gelint when processing Eiffel for .NET systems."

This reverts commit 0ab8d69b8d9715e7eda07422ff5f0ce36bb6a3a5.
Some minor bugs of the debugger fixed and layout improved.
Update from master

Conflicts:
	.gitignore
Minor bugs in debugger fixed.

Conflicts:
	doc/debugger/debug.pdf
	doc/debugger/debugh001.png
	doc/debugger/debugh002.png
	doc/debugger/debugh003.png
	doc/debugger/debugh004.png
	doc/debugger/debugh005.png
	doc/debugger/debugh006.png
	doc/debugger/debugh007.png
	doc/debugger/debugh008.png
	library/tools/debugger/dg.c
	library/tools/eiffel/generation/introspection/et_is_feature_text.e
	library/tools/eiffel/generation/introspection/et_is_routine_text.e
	tool/gedb/driver.vala