Miscellaneous fixes

[nanang]

This is placeholder for miscellaneous or minor fixes.

[nanang]

In r2827:

• Moved a call to dump_check() in ice_session.c to be inside the log printing.

[bennylp]

In 2837:

• Sound device is not automatically started after pjsua_set_no_snd_dev() is called, even after pjsua_set_snd_dev() is called

[bennylp]

In r2841:

• added WAVE_FORMAT_DIRECT flag when opening waveIn/Out in WMME audio dev, hopefully it can reduce latency

[bennylp]

In r2851:

• fixed compilation warning in IPP about conversion from int to char

[nanang]

In r2857:

• Fixed bug in checking transaction registration with same key, passing wrong pointer of transaction key.

[nanang]

In r2862:

• Fixed bug of a wrong check variable used in writing playback_lat setting in pjsua app (thanks Wolfgang Fritz for the fix).

[bennylp]

In r2866:

• enlarge the column for pool name in pj_pool_factory_dump() output

[bennylp]

In r2872:

• fixed wrong doxygen comment for pj_list_empty() function (thanks Roman Puls for the report!)

[bennylp]

In r2874:

• removed unused fields refresh_tm and hangup_tm from pjsua_call structure (pjsua_internal.h)

[bennylp]

In r2875:

• updated missing doxygen documentation from various PJMEDIA-CODEC headers

[bennylp]

In r2880:

• added more search paths for jbtest.dat

[nanang]

In r2885:

• Removed self detach() in destroy() in transport SRTP.
• Added few more assertion checks in transport SRTP.

[bennylp]

In r2892:

• added reload command ('L') in pjsua to shutdown and reinitialize the library

[bennylp]

In r2898:

• removed mention of version number in PJSIP (it's written 0.5.9!)

[nanang]

In r2899:

• Updated VS2005 pjproject-vs8.sln removing platform 'mixed platform'.