tank drive changes

-added forward left and right movement
-removed crab drive pivot and left & right
backward movement tanks

-added backward and forward movement
changed control scheme

-added tank drive comment
teleop forward and backward fix

-changed if conditional for forward and back movement
Revert "teleop forward and backward fix"

This reverts commit 38b6bee7fb3e7ffd982f4f7fdeb22c8bac0679af.
fixed forward and backward

-changed forward and backward y-axis conditionals
got teleop to work!

-added joy1_n1 variables to teleop
tank drive update

-changed the motors to move with the 2 joysticks
fixed tank drive controls

-moved everything to one if statement
fixed tank drive documentation

-added documentation for tank drive
IDK
Revert "IDK"

This reverts commit a30ea9ee39caef07a0b45189665045fd2adfd2ed.
removed accelerometer sensor from teleop
Merge pull request #2 from Tryptophan/teleop

Teleop