JQM: performance tuning

JQM: performance tuning

This patch contains 3 jQM patch files.

Each jQM patch modifies jQM as follows :
- 0029 : This jQM patch removes unneccessary jQuery() function calls and
         replaces jqmData() to getAttribute().
- 0030 : This jQM patch replaces getAttribute() mentioned above to getAttrFixed()
         which is a wrapper function of getAttribute() with handling return value.
- 0031 : This jQM patch enhances performance of the widget self-init method.

Change-Id: Ib91d8722fcd75cca1637b61dde05d9635e152a52