Added a dialog to enter MathConstants

Moved current functionality of Save/Load to commentary
New functionality added (out of place here)

Signed-off-by: TimdeJonge <t.dejonge@students.uu.nl>
lege commit

Signed-off-by: TimdeJonge <t.dejonge@students.uu.nl>
Merge branch 'master' of https://github.com/Divendo/math-dragon into work

Conflicts:
	src/org/teaminfty/math_dragon/MainActivity.java
Built simple functioning keyboard

Signed-off-by: TimdeJonge <t.dejonge@students.uu.nl>
Minor fix

Signed-off-by: TimdeJonge <t.dejonge@students.uu.nl>
Merge branch 'master' into work

Conflicts:
	res/values/dimens.xml
	src/org/teaminfty/math_dragon/MainActivity.java

Conflicts fixed
First implement MathConstantView

Factor working, pi/e can go on/off, no powers pi/e yet.


Signed-off-by: TimdeJonge <t.dejonge@students.uu.nl>
Merge branch 'master' into work

Conflicts:
	res/layout/fragment_main_screen.xml
	res/values/dimens.xml
	res/values/strings.xml
	src/org/teaminfty/math_dragon/MainActivity.java
Fixed some bugs in MathConstantView

Signed-off-by: TimdeJonge <t.dejonge@students.uu.nl>
Created all buttons (and their icons) we're going to need

Signed-off-by: Mark Kamsma <mark@markkamsma.nl>
Fixed Delete button

Signed-off-by: TimdeJonge <t.dejonge@students.uu.nl>
Merge branch 'master' into work

Conflicts:
	res/layout/fragment_main_screen.xml
	res/values/strings.xml

Signed-off-by: TimdeJonge <t.dejonge@students.uu.nl>
Improved the layout and code of the keyboard.
At the same time some bugs have been fixed.

Signed-off-by: Mark Kamsma <mark@markkamsma.nl>
Merge branch 'work' into pull

Conflicts:
	res/drawable/circle_button_bg.xml
	res/layout/fragment_main_screen.xml
	res/values/strings.xml