BUG=Conversion is slow
TEST=Test manually with client applications.

Review URL: https://codereview.appspot.com/6073043

BUG=All characters should be set on conversionText when cursor position is not at the end.
TEST=Manually tested with client codes.

Review URL: https://codereview.appspot.com/5869044

BUG=rest_text() returns incorrect value in some situation.
TEST=Manually tested with client code.

Review URL: https://codereview.appspot.com/5694088

This CL changes API only.
Internal behavior will be changed in another CL.

BUG=None
TEST=Run a test

Review URL: http://codereview.appspot.com/5437086

replacing
- gchar - char
- gint - int, unsigned int, or size_t
- guint -> unsigned int or size_t
- guint8 -> unsigned char
- gboolean -> bool
- gsize -> size_t
- gpointer -> void *
- gconstpointer -> const void *
- gunichar -> unichar (typedef of int on PyZyUtil.h)

BUG=None
TEST=Run a test

Review URL: http://codereview.appspot.com/5367046

- Add many APIs to replace processKeyEvent.
- Remove pager related codes.

BUG=None
TEST=Run a test

Review URL: http://codereview.appspot.com/5314054

BUG=None
TEST=Run a test.

Review URL: http://codereview.appspot.com/5312042

BUG=None
TEST=Run a test.

Review URL: http://codereview.appspot.com/5309041

This CL don't modify files under debian/*.
Some files which is removed by http://codereview.appspot.com/5305041/ are also unmodified.

BUG=None
TEST=Manually

Review URL: http://codereview.appspot.com/5301043

BUG=
TEST=

Review URL: http://codereview.appspot.com/5235062