Userland #80

Fix for bad exposure setting - set ISO to auto on startup
Merge pull request #90 from JamesH65/exposure_fix4

Userland #80 - fix for exposure setting
userland #64

Added ability to set the H264 profile for encoding.

Supports main, baseline and high.

Also needed to shuffle some code around to make some parsing
code available outside raspicamcontrol.c
Merge pull request #91 from JamesH65/h264_profile

userland #64 Add support to set H264 profile