CHANGELOG for PICA library.

1.0.0:

* Initial Release

1.1.0:

- Added function  int PICAgetTimeStr(char ** time_str)  to the Log API to get time formatted as a string.
- Corrected some bugs on timer.
- Device API now returns Netmask and device index too.
- Device API for Linux uses ioctl instead of /proc/net/dev entries to list available devices.

