BUG in read_csv when using skiprows on a file with CR line endings with the c engine. #9079
Fixes GH9099: Support simultaneous copy and dtype args in DataFrame init
TST: sql skip tests at class level if database is not available
API: Index.duplicated should return np.array
Merge branch 'master' of https://github.com/mairas/pandas into mairas-master

Conflicts:
	doc/source/whatsnew/v0.16.0.txt
Merge branch 'duplicated2' of https://github.com/sinhrks/pandas into sinhrks-duplicated2
Merge branch 'trailing_spaces_fix' of https://github.com/selasley/pandas into selasley-trailing_spaces_fix

Conflicts:
	doc/source/whatsnew/v0.16.0.txt
SQL: fix type conversion for Timestamp object typed columns (GH9085)
Merge pull request #9110 from jorisvandenbossche/sql-testing-skipclass

TST: sql skip tests at class level if database is not available
Merge pull request #9109 from jorisvandenbossche/sql-timestamp-object

SQL: fix type conversion for Timestamp object typed columns (GH9085)
unstack with nan in the index