Create compressed salary testing data.

Create compressed versions of the salary dataset for testing pandas-dev#14576.

Rename `salary.table.csv` to `salaries.tsv` because the dataset is tab rather
than comma delimited. Remove the word table because it's implied by the
extension. Rename `salary.table.gz` to `salaries.tsv.gz`, since compressed files
should append to not strip the original extension.

Created new files by running the following commands:

```sh
cd pandas/io/tests/parser/data
bzip2 --keep salaries.tsv
xz --keep salaries.tsv
zip salaries.tsv.zip salaries.tsv
```

Author: dhimmel

pandas/io/tests/parser/common.py

@@ -630,18 +630,18 @@ def test_read_csv_parse_simple_list(self):
     def test_url(self):
         # HTTP(S)
         url = ('https://raw.github.com/pandas-dev/pandas/master/'
-               'pandas/io/tests/parser/data/salary.table.csv')
+               'pandas/io/tests/parser/data/salaries.tsv')
         url_table = self.read_table(url)
         dirpath = tm.get_data_path()
-        localtable = os.path.join(dirpath, 'salary.table.csv')
+        localtable = os.path.join(dirpath, 'salaries.tsv')
         local_table = self.read_table(localtable)
         tm.assert_frame_equal(url_table, local_table)
         # TODO: ftp testing
 
     @tm.slow
     def test_file(self):
         dirpath = tm.get_data_path()
-        localtable = os.path.join(dirpath, 'salary.table.csv')
+        localtable = os.path.join(dirpath, 'salaries.tsv')
         local_table = self.read_table(localtable)
 
         try:

pandas/io/tests/parser/data/salary.table.csv renamed to pandas/io/tests/parser/data/salaries.tsv

@@ -18,19 +18,19 @@ class TestUrlGz(tm.TestCase):
 
     def setUp(self):
         dirpath = tm.get_data_path()
-        localtable = os.path.join(dirpath, 'salary.table.csv')
+        localtable = os.path.join(dirpath, 'salaries.tsv')
         self.local_table = read_table(localtable)
 
     @tm.network
     def test_url_gz(self):
         url = ('https://raw.github.com/pandas-dev/pandas/'
-               'master/pandas/io/tests/parser/data/salary.table.gz')
+               'master/pandas/io/tests/parser/data/salaries.tsv.gz')
         url_table = read_table(url, compression="gzip", engine="python")
         tm.assert_frame_equal(url_table, self.local_table)
 
     @tm.network
     def test_url_gz_infer(self):
-        url = 'https://s3.amazonaws.com/pandas-test/salary.table.gz'
+        url = 'https://s3.amazonaws.com/pandas-test/salaries.tsv.gz'
         url_table = read_table(url, compression="infer", engine="python")
         tm.assert_frame_equal(url_table, self.local_table)