Fix default value of stream_output/error in the docs.
Handle new arguments quoting style for cream jobs. #3473

When creating a CREAM job description, the gridmanager was ignoring the
newer Arguments job attribute. Now, it uses an ArgList object.
Note: Quoting of characters that have special meaning to CREAM isn't
handled by this commit.
minor edit of 7.8.8 version history item
===GT=== #3495
Minor edit to 7.8.8 version history item
===GT=== #3478
minor edit of 7.8.8 version history item
===GT=== #3476
Merge branch 'V7_8-branch'

Conflicts:
	src/condor_gridmanager/creamjob.cpp