Update agent version to 1.0.5 on agent_metadata.py

This is a preparation step for releasing new agent version 1.0.5.
Changes in 1.0.5 are documented in CHANGELOG.

* Improve CPU usage checker and ProfilerDisabler (Issue #19)

Author: Colman Yau

CHANGELOG.rst

@@ -2,6 +2,10 @@
 CHANGELOG
 =========
 
+1.0.5 (layer_v5)
+===================
+* Improve CPU usage checker and ProfilerDisabler (Issue #19)
+
 1.0.4 (layer_v4)
 ===================
 * Attempt to report profile before sample to avoid incorrect profile end time (Issue #15)

codeguru_profiler_agent/agent_metadata/agent_metadata.py

@@ -9,7 +9,7 @@
 # NOTE: Please do not alter the value for the following constants without the full knowledge of the use of them.
 # These constants are used in several scripts, including setup.py.
 __agent_name__ = "CodeGuruProfiler-python"
-__agent_version__ = "1.0.4"
+__agent_version__ = "1.0.5"
 
 
 def look_up_fleet_info(