* Removed all extractors except the grid extractor.
Removed the call to transcript extractor in ccx_encoders_transcript.c
* Removed unnecessary array appening statements in python_grid_extractor.
WIP: switch in extractor.
* Added switch in g608 grid extractor.
* Deleted comments from wrappers.
* Refactored code in ccextractor.c and .h files.
Removed all the commented part.
Made proper changes according to the coding conventions.
* Removed calls to extractor from all the encoders.
The only call made to extractor is from ccx_encoders_python.c.
* Removed a comment from wrapper.c.
In init_write function of output.c added a call to free the output string returned by asprintf in case of
sending filename to callback function.
* Added calls to free the char* which is malloced by asprintf in
extractor.c
WIP: Free the global variable elements.
* Sample testing correctly for italics tag.
Also added a hack to print only 32 characters when unicode fails.
WIP: Font tag.
* Added support for handling font and italics in Python SRT generator.
* modified the font generator.
Also, added count method for checking blank strings in
python_srt_generator.
* Added free statements for avoiding memory leaks.
* added return code for failure of asprintf calls.
* Removing unnecessary code from api_testing.py
* Made modifications to Makefile and build script.
* Added recursive_tester.py
Autoconf builds successfully.
* BUG: Made change to get_line_encoded to encode the last \0 character in a
line. Otherwise the EOL characted is absent causing garbage value to be
present in SRT.
* Exporting the encoding of the captions from CCExtractor to Python so
that the python SRT generator can generate proper SRT files.
* Modified the include statement in extractor.h
