Resolve "Update documentation of the element output file"

Closes #57

See merge request OPAL/documentation/manual!127

Resolve "Correct eV to eV/c for momentum in the manual"

Closes #56

See merge request OPAL/documentation/manual!126

Resolve "Update OPTION statements"

Closes #55

See merge request OPAL/documentation/manual!125

Extend the list of symbolic constant

See merge request OPAL/documentation/manual!124

Correct the description of REMOTEPARTDEL

See merge request OPAL/documentation/manual!123

Resolve "Update documentation for collimators"

Closes #54

See merge request OPAL/documentation/manual!122

Resolve "Update MACRO example using removed command SHOW"

See merge request OPAL/documentation/manual!120

Resolve "Update documentation for Particle-Matter Interaction"

Closes OPAL/src#142, OPAL/src#116, and #51

See merge request OPAL/documentation/manual!117

Fix value for which autophasing algorithm isn't run.

See merge request OPAL/documentation/manual!118

Update control.asciidoc

See merge request OPAL/documentation/manual!114

Resolve "add CSS stylesheets"

Closes #52

See merge request OPAL/documentation/manual!110

Mark options `DELPARTFREQ` and `BOUNDPDESTROYFQ` as used by Opal-cycl only.

See merge request OPAL/documentation/manual!108

Resolve "Update physical constants"

Closes #50

See merge request OPAL/documentation/manual!107

Resolve "Update cyclotron field map types"

Closes #49

See merge request OPAL/documentation/manual!106

Resolve "Description of SplineTimeDependence element"

Closes #11

See merge request OPAL/documentation/manual!105

Resolve "Documentation for new Undulator element"

Closes #38

See merge request OPAL/documentation/manual!56

For opal cyclotrons, a sentence about z (or s) and y coordinates is added in...

See merge request OPAL/documentation/manual!104

For opal cyclotrons, a sentence about z (or s) and y coordinates is added in section 1.10.1 output. 

Resolve "Fix typo in AMR table"

Closes #47

See merge request OPAL/documentation/manual!102

Resolve "replace TABs with spaces in *.attributes, more links to fix"

Closes #44

See merge request OPAL/documentation/manual!99

- tabs replaced with spaces in Manual.attributes
- unused definition of attribute 'baseurl' removed
- use attribute 'link_manual_src' instead of 'link_OPAL_doc'