update (un)install scripts
update utl_call_stack to use varible length parsing
fix install errors. prompt for grant/synonym user. add new colums to log_table
Merge pull request #2 from Shoelace/utl_call_stack

Utl call stack fixes
Merge branch 'master' of github.com:Shoelace/log4oracle into development

Conflicts:
	src/uninstall.sql
mrger and other stuff