Adding the function ps_is_instrument_default_enabled() which returns whether a given instrument is enabled by default for the MySQL version used.
Adding README for the ps_is_instrument_default_enabled() function.
Include the function ps_is_instrument_default_enabled() in MySQL 5.6 and 5.7
Adding the function ps_is_instrument_default_timed() which returns whether a given instrument is timed by default for the MySQL version used.
Adding README for the ps_is_instrument_default_timed() function.
Include the function ps_is_instrument_default_timed() in MySQL 5.6 and 5.7
Use the functions ps_is_instrument_default_enabled() and ps_is_instrument_default_timed() when resetting setup_instruments to the default
Merge remote branch 'upstream/development' into dev/issue_15_reset_to_default

Conflicts:
	README.md
	sys_56.sql
	sys_57.sql
Change the schema_table_statistics views to use another view using the TEMPTABLE algorithm to allow the optimizer to add an ad-hoc index like it can on the matialised subqueries.
Change the schema_table_statistics_with_buffer views to use another view using the TEMPTABLE algorithm to allow the optimizer to add an ad-hoc index like it can on the matialised subqueries.
Updating the README file for the new definitions of schema_table_statistics and schema_table_statistics_with_buffer
Merge pull request #20 from JesperWisborgKrogh/dev/issue_15_reset_to_default

Dev/issue 15 reset to default
Merge pull request #24 from JesperWisborgKrogh/dev/schema_table_statistics_performance

schema_table_statistics and schema_table_statistics_with_buffer performance
Add missing waits_by_host_by_latency.sql file. Update the waits_by_user_by_latency view to also include background thread info as with other user summary views. Perhaps this should be a user_summary_by_waits_by_latency, and similar for the host one, for consistency, but not done here.
Issue#25 - Add events_transactions_current to the default enabled consumers
Update NEWS file for recent changes before 1.1.0 release
Add missing space for hour notation in format_time
Issue #26 - added missing memory_by_host view for MySQL 5.7
Fix line endings for the install files
Tweak help for the memory_by_host_by_current_bytes view