* restore original sigaction in restoreSignalHandler
- Save original sigactions in a map called gSavedSigActions
- In restoreSignalHandler, do nothing if there is no saved sigaction.
If there is a saved sigaction, then re-install it.
- Fixes issue #253
* fix bug found in code review of PR #254
* add functions for reporting sigaction errors
- Factor out reportSigactionError functions from functions that
call sigaction to allow unit testing.
- Use strsignal libc function to convert from signal number to name
to eliminate chance of not finding the name in {g,k}Signals maps.
* cleanup. perror doesn't need a wrapper. put code under test
* Added thread ID configurable through API calls. Left to do g3sinks, documentation and some corner test cases for CHECK, LOG(FATAL) and FATAL signal
* improve test script, break if error
* easier to use API. Api docs added
* Update API.markdown
* Update API.markdown
* Update API.markdown
* updated readme with details for overriding default for "full details"
* updated custom sink with custom formatting example
* static build with MS libs; remove vc11 support from cmake
* support AMD processor on winXp
* mingw build
* support older versions
* removed cmake warnings
* fix cmake >= 3.1 warnings (CMP0054)
* add target_include_directories - in projects that depend on g3log, do not need to specify include_directories
* Improved CPackage installation
* cleanup of build and test scripts
* c++14 gives for cleaner syntax
* build cleanup libg3logger.so will be a link to the actual libg3logger.so.<major><minor><build>. Only shared libraries from now on
* disableAll for log levels
* new setLogLevel impl
* cleaned up levels, now it should be easy for the user to understand how to add custom levels
