Log Message:
Update dynamips to 0.2.15

10-Jul-2013 to 31-Jul-2013 (renamed to dynamips)
------------------------------------------------
Fixed issue 11 - nvram:private-config is destroyed when we write
 nvram:startup-config
Fixed issue 13 - C3745 has an emulated NVRAM that is not continuous,
 so we can generate an invalid checksum when the config is written
Fixed issue 14 - a file descriptor is leaked every time the config is
 extracted/read

+-------------------.
| Release:  v0.2.9   |
+-------------------'

05-Aug-2013 to 07-Sep-2013
--------------------------
Implemented enhancement 15 - extend hypervisor commands push_config,
 extract_config, and set_config
Implemented enhancement 16 - reimplement nvram_export
Fixed issue 17 - Dynamips hangs on startup if no (or unknown) parameters
 are given v0.2.8 and 0.2.9

+--------------------.
| Release:  v0.2.10   |
+--------------------'

16-Sep-2013 to 10-Feb-2014
--------------------------
Fixed issue 20 - segmentation fault when accessing a device that failed
 to memory map it's file
Implemented enhancement 21 - Renaming devices
Closed issue 22 - Hypervisor documentation is out of date
Implemented enhancement 36 - hypervisor command to clean the files of a vm
Fixed issue 27 - Rename issues.

+--------------------.
| Release:  v0.2.11   |
+--------------------'

10-Feb-2014 to 27-Mar-2014
--------------------------
Fixed issue 29 - packet loss with multicast traffic
Closed issue 31 - create hypervisor command to find a pattern in the
 router memory

+--------------------.
| Release:  v0.2.12   |
+--------------------'

04-Apr-2014 to 05-Jul-2014
--------------------------
Final fix for issue 9 - Reproducable crash
Fixed issue 38 - Unknown file system detected
Fixed issue 41 - "Frame is Too Long" error in Wireshark
Merge pull request 45 from candlerb/candlerb/txperformance

+--------------------.
| Release:  v0.2.13   |
+--------------------'

10-Jul-2014 to 01-Sep-2014
--------------------------
Fixed issue 49 - IOS crashes after router restart
Fixed issue 50 - vm send_con_msg
Fixed issue 55 - 'unstable' installs 'stable' version on Mac OS X

+--------------------+
| Release:  v0.2.14  |
+--------------------+

06-Dec-2014
-----------

+--------------------+
| Release:  v0.2.15  |
+--------------------+

01-06-2015
----------

Fixed issue 60 - build on Mac OS X
Fixed packet capture on Mac OS X (echoed packets)