browser option added to harvest
fixint intendation
change BROWSER setting to LETTUCE_BROWSER
Added settings.LETTUCE_FAILED_STEP_SLEEP and --failed-step-sleep option for sleeping lettuce, when step is failed for Debugging
Added option for specify settings.DEFAULT_TABLESPACE
Added option DISABLE_JSCOMPILE
Merge branch 'master' of git://github.com/adw0rd/lettuce

Conflicts:
	lettuce/django/management/commands/harvest.py
Added settings.LETTUCE_BY_STEP and --by-step option for pausing between steps