Updated bounds checking for sources and receivers

Added information on new ID and field component specification for the…

… #rx command.

Updated version number to v.3.0.0b10

Updated version number to v.3.0.0b9

Updated version to v.3.0.0b8.

Merge remote-tracking branch 'origin/master'

Updates to names of some of the tool scripts.

Overhauled installation instructions for end users and developers. Bi…

…naries of the Cython modules are now provided in releases for end users.

Updated beta version to 3.0.0b4

Updated beta version number to b3.