Process SQL comment lines

In case that SQL script contains comment lines beginning with '--'
The Keyword fails due to emty SQL statement.
Patch ignores such lines from further processing
Merge pull request #27 from zmlpjuran/master

Process SQL comment lines
[Issue #24] Fixed 'Row Count' keyword by adding recommended #fetchall() function prior to invocation of #rowcount() as suggested by polusok.
Merge pull request #1 from franz-see/master

Update from upstream
'Table Must Exist' keyword implementation for Oracle database

Origin selectStatement does not work for Oracle because it has different implementation
This fix implements Oracle specific statement (cx_Oracle module).
Other databases (database modules) use origin selectStatement.

Change-Id: I5bfa0f3fcdddd07fe077e75cd49bdedfa5ea9bfa
Update connection_manager.py

Added support for MS SQL Server through pyodbc module.
Ensure port and host from config file are used.

Set named arguments to None and added dbPort default in similar manner
to that already existing for dbHost (which would never have previously
been used).
Merge pull request #28 from zmlpjuran/master

'Table Must Exist' keyword implementation for Oracle database
Merge pull request #29 from sdarshanam/patch-1

Update connection_manager.py
Merge pull request #30 from devsupportman/master

Ensure port and host from config file are used.
Merge branch 'master' of https://github.com/franz-see/Robotframework-Database-Library